diff --git a/includes/common.inc b/includes/common.inc
index 5857aac6d8753466aadde8d34878c0d1b47ba7d2..1ec294288650c429c1d4674509a0ae8158f508b9 100644
--- a/includes/common.inc
+++ b/includes/common.inc
@@ -6251,11 +6251,11 @@ function entity_get_info($entity_type = NULL) {
           'load hook' => $name . '_load',
           'bundles' => array(),
           'view modes' => array(),
-          'object keys' => array(),
+          'entity keys' => array(),
           'cacheable' => TRUE,
           'translation' => array(),
         );
-        $entity_info[$name]['object keys'] += array(
+        $entity_info[$name]['entity keys'] += array(
           'revision' => '',
           'bundle' => '',
         );
@@ -6306,11 +6306,11 @@ function entity_info_cache_clear() {
 function entity_extract_ids($entity_type, $entity) {
   $info = entity_get_info($entity_type);
   // Objects being created might not have id/vid yet.
-  $id = isset($entity->{$info['object keys']['id']}) ? $entity->{$info['object keys']['id']} : NULL;
-  $vid = ($info['object keys']['revision'] && isset($entity->{$info['object keys']['revision']})) ? $entity->{$info['object keys']['revision']} : NULL;
+  $id = isset($entity->{$info['entity keys']['id']}) ? $entity->{$info['entity keys']['id']} : NULL;
+  $vid = ($info['entity keys']['revision'] && isset($entity->{$info['entity keys']['revision']})) ? $entity->{$info['entity keys']['revision']} : NULL;
   // If no bundle key provided, then we assume a single bundle, named after the
   // entity type.
-  $bundle = $info['object keys']['bundle'] ? $entity->{$info['object keys']['bundle']} : $entity_type;
+  $bundle = $info['entity keys']['bundle'] ? $entity->{$info['entity keys']['bundle']} : $entity_type;
   $cacheable = $info['cacheable'];
   return array($id, $vid, $bundle, $cacheable);
 }
@@ -6334,12 +6334,12 @@ function entity_extract_ids($entity_type, $entity) {
 function entity_create_stub_entity($entity_type, $ids) {
   $entity = new stdClass();
   $info = entity_get_info($entity_type);
-  $entity->{$info['object keys']['id']} = $ids[0];
-  if (isset($info['object keys']['revision']) && !is_null($ids[1])) {
-    $entity->{$info['object keys']['revision']} = $ids[1];
+  $entity->{$info['entity keys']['id']} = $ids[0];
+  if (isset($info['entity keys']['revision']) && !is_null($ids[1])) {
+    $entity->{$info['entity keys']['revision']} = $ids[1];
   }
-  if ($info['object keys']['bundle']) {
-    $entity->{$info['object keys']['bundle']} = $ids[2];
+  if ($info['entity keys']['bundle']) {
+    $entity->{$info['entity keys']['bundle']} = $ids[2];
   }
   return $entity;
 }
diff --git a/includes/entity.inc b/includes/entity.inc
index d4d19e6a27a39bab8bc93d8224aa722478d1abcb..4b6058b753bd82b4545a7f16f44ac71d76717b84 100644
--- a/includes/entity.inc
+++ b/includes/entity.inc
@@ -64,11 +64,11 @@ public function __construct($entityType) {
     $this->entityInfo = entity_get_info($entityType);
     $this->entityCache = array();
     $this->hookLoadArguments = array();
-    $this->idKey = $this->entityInfo['object keys']['id'];
+    $this->idKey = $this->entityInfo['entity keys']['id'];
 
     // Check if the entity type supports revisions.
-    if (!empty($this->entityInfo['object keys']['revision'])) {
-      $this->revisionKey = $this->entityInfo['object keys']['revision'];
+    if (!empty($this->entityInfo['entity keys']['revision'])) {
+      $this->revisionKey = $this->entityInfo['entity keys']['revision'];
       $this->revisionTable = $this->entityInfo['revision table'];
     }
     else {
diff --git a/modules/comment/comment.install b/modules/comment/comment.install
index 7b486b493afb7b8939a5b10d9e88c2a7f607483f..ad3ede220a3c8adeab19cf2fc33e549949042926 100644
--- a/modules/comment/comment.install
+++ b/modules/comment/comment.install
@@ -55,7 +55,7 @@ function comment_enable() {
     $field = array(
       'field_name' => 'comment_body',
       'type' => 'text_long',
-      'object_types' => array('comment'),
+      'entity_types' => array('comment'),
     );
     field_create_field($field);
   }
@@ -269,7 +269,7 @@ function comment_update_7012() {
   $field = array(
     'field_name' => 'comment_body',
     'type' => 'text_long',
-    'object_types' => array('comment'),
+    'entity_types' => array('comment'),
   );
   field_create_field($field);
 
@@ -277,7 +277,7 @@ function comment_update_7012() {
   $body_instance = array(
     'field_name' => 'comment_body',
     'label' => 'Comment',
-    'object_type' => 'comment',
+    'entity_type' => 'comment',
     'settings' => array('text_processing' => 1),
     // Hide field label by default.
     'display' => array(
diff --git a/modules/comment/comment.module b/modules/comment/comment.module
index c88ac3562742ce6d9a6b562796a3ba1c6f356acf..ab71b724bdbbad44e9276b4e8f6cfdd63f542ee3 100644
--- a/modules/comment/comment.module
+++ b/modules/comment/comment.module
@@ -100,7 +100,7 @@ function comment_entity_info() {
       'uri callback' => 'comment_uri',
       'fieldable' => TRUE,
       'controller class' => 'CommentController',
-      'object keys' => array(
+      'entity keys' => array(
         'id' => 'cid',
         'bundle' => 'node_type',
       ),
@@ -343,7 +343,7 @@ function _comment_body_field_instance_create($info) {
   $instance = array(
     'field_name' => 'comment_body',
     'label' => 'Comment',
-    'object_type' => 'comment',
+    'entity_type' => 'comment',
     'bundle' => 'comment_node_' . $info->type,
     'settings' => array('text_processing' => 1),
     'required' => TRUE,
diff --git a/modules/field/field.api.php b/modules/field/field.api.php
index 92585935592fdaeb886e3fc5632f7d597f185fff..d8752ba628321c6cc0c23fac5d52de606333d65b 100644
--- a/modules/field/field.api.php
+++ b/modules/field/field.api.php
@@ -659,7 +659,7 @@ function hook_field_widget_info_alter(&$info) {
  *   The order of this item in the array of subelements (0, 1, 2, etc).
  * @param $element
  *   A form element array containing basic properties for the widget:
- *   - #object_type: The name of the entity the field is attached to.
+ *   - #entity_type: The name of the entity the field is attached to.
  *   - #bundle: The name of the field bundle the field is contained in.
  *   - #field_name: The name of the field.
  *   - #language: The language the field is being edited in.
@@ -1023,7 +1023,7 @@ function hook_field_attach_update($entity_type, $entity) {
  *   values.
  * @param $context
  *   An associative array containing:
- *   - obj_type: The type of $entity; e.g. 'node' or 'user'.
+ *   - entity_type: The type of $entity; e.g. 'node' or 'user'.
  *   - object: The entity with fields to render.
  *   - element: The structured array containing the values ready for rendering.
  */
@@ -1059,7 +1059,7 @@ function hook_field_attach_delete_revision($entity_type, $entity) {
  *   The structured content array tree for all of $entity's fields.
  * @param $context
  *   An associative array containing:
- *   - obj_type: The type of $entity; e.g. 'node' or 'user'.
+ *   - entity_type: The type of $entity; e.g. 'node' or 'user'.
  *   - object: The entity with fields to render.
  *   - view_mode: View mode, e.g. 'full', 'teaser'...
  */
diff --git a/modules/field/field.attach.inc b/modules/field/field.attach.inc
index 4122000c468a80f112c7787a705c4537272bf723..f177f535db6af0d03f1ed199503489f73609601b 100644
--- a/modules/field/field.attach.inc
+++ b/modules/field/field.attach.inc
@@ -186,7 +186,7 @@ function _field_invoke($op, $entity_type, $entity, &$a = NULL, &$b = NULL, $opti
   list(, , $bundle) = entity_extract_ids($entity_type, $entity);
 
   if ($options['deleted']) {
-    $instances = field_read_instances(array('object_type' => $entity_type, 'bundle' => $bundle), array('include_deleted' => $options['deleted']));
+    $instances = field_read_instances(array('entity_type' => $entity_type, 'bundle' => $bundle), array('include_deleted' => $options['deleted']));
   }
   else {
     $instances = field_info_instances($entity_type, $bundle);
@@ -616,7 +616,7 @@ function field_attach_load($entity_type, $entities, $age = FIELD_LOAD_CURRENT, $
     foreach ($queried_entities as $entity) {
       list($id, $vid, $bundle) = entity_extract_ids($entity_type, $entity);
       if ($options['deleted']) {
-        $instances = field_read_instances(array('object_type' => $entity_type, 'bundle' => $bundle), array('include_deleted' => $options['deleted']));
+        $instances = field_read_instances(array('entity_type' => $entity_type, 'bundle' => $bundle), array('include_deleted' => $options['deleted']));
       }
       else {
         $instances = field_info_instances($entity_type, $bundle);
@@ -1188,7 +1188,7 @@ function field_attach_prepare_view($entity_type, $entities, $view_mode = 'full')
  *     '#title' => the label of the field instance,
  *     '#label_display' => the label display mode,
  *     '#object' => the fieldable entity being displayed,
- *     '#object_type' => the type of the entity being displayed,
+ *     '#entity_type' => the type of the entity being displayed,
  *     '#language' => the language of the field values being displayed,
  *     '#view_mode' => the view mode,
  *     '#field_name' => the name of the field,
@@ -1233,8 +1233,8 @@ function field_attach_view($entity_type, $entity, $view_mode = 'full', $langcode
 
   // Let other modules alter the renderable array.
   $context = array(
-    'obj_type' => $entity_type,
-    'object' => $entity,
+    'entity_type' => $entity_type,
+    'entity' => $entity,
     'view_mode' => $view_mode,
   );
   drupal_alter('field_attach_view', $output, $context);
@@ -1278,8 +1278,8 @@ function field_attach_preprocess($entity_type, $entity, $element, &$variables) {
 
   // Let other modules make changes to the $variables array.
   $context = array(
-    'obj_type' => $entity_type,
-    'object' => $entity,
+    'entity_type' => $entity_type,
+    'entity' => $entity,
     'element' => $element,
   );
   drupal_alter('field_attach_preprocess', $variables, $context);
@@ -1337,7 +1337,7 @@ function field_attach_create_bundle($entity_type, $bundle) {
 function field_attach_rename_bundle($entity_type, $bundle_old, $bundle_new) {
   db_update('field_config_instance')
     ->fields(array('bundle' => $bundle_new))
-    ->condition('object_type', $entity_type)
+    ->condition('entity_type', $entity_type)
     ->condition('bundle', $bundle_old)
     ->execute();
 
diff --git a/modules/field/field.crud.inc b/modules/field/field.crud.inc
index 7e631f04cc86b1fc6a8b87d1f689d8b9ab40fed6..e6c0122a3c309d766debf30549a2f810577b8c5b 100644
--- a/modules/field/field.crud.inc
+++ b/modules/field/field.crud.inc
@@ -45,7 +45,7 @@
  * - type (string)
  *     The type of the field, such as 'text' or 'image'. Field types
  *     are defined by modules that implement hook_field_info().
- * - object_types (array)
+ * - entity_types (array)
  *     The array of entity types that can hold instances of this field. If
  *     empty or not specified, the field can have instances in any entity type.
  * - cardinality (integer)
@@ -108,7 +108,7 @@
  *     It is populated automatically by field_create_instance().
  * - field_name (string)
  *     The name of the field attached to the bundle by this instance.
- * - object_type (string)
+ * - entity_type (string)
  *     The name of the entity type the instance is attached to.
  * - bundle (string)
  *     The name of the bundle that the field is attached to.
@@ -262,13 +262,13 @@ function field_create_field($field) {
   // collisions with existing entity properties, but some is better
   // than none.
   foreach (entity_get_info() as $type => $info) {
-    if (in_array($field['field_name'], $info['object keys'])) {
+    if (in_array($field['field_name'], $info['entity keys'])) {
       throw new FieldException(t('Attempt to create field name %name which is reserved by entity type %type.', array('%name' => $field['field_name'], '%type' => $type)));
     }
   }
 
   $field += array(
-    'object_types' => array(),
+    'entity_types' => array(),
     'cardinality' => 1,
     'translatable' => FALSE,
     'locked' => FALSE,
@@ -403,8 +403,8 @@ function field_update_field($field) {
   if ($field['type'] != $prior_field['type']) {
     throw new FieldException("Cannot change an existing field's type.");
   }
-  if ($field['object_types'] != $prior_field['object_types']) {
-    throw new FieldException("Cannot change an existing field's object_types property.");
+  if ($field['entity_types'] != $prior_field['entity_types']) {
+    throw new FieldException("Cannot change an existing field's entity_types property.");
   }
   if ($field['storage']['type'] != $prior_field['storage']['type']) {
     throw new FieldException("Cannot change an existing field's storage type.");
@@ -588,7 +588,7 @@ function field_delete_field($field_name) {
  * Creates an instance of a field, binding it to a bundle.
  *
  * @param $instance
- *   A field instance definition array. The field_name, object_type and
+ *   A field instance definition array. The field_name, entity_type and
  *   bundle properties are required. Other properties, if omitted,
  *   will be given the following default values:
  *   - label: the field name
@@ -620,15 +620,15 @@ function field_create_instance($instance) {
     throw new FieldException(t("Attempt to create an instance of a field @field_name that doesn't exist or is currently inactive.", array('@field_name' => $instance['field_name'])));
   }
   // Check that the required properties exists.
-  if (empty($instance['object_type'])) {
+  if (empty($instance['entity_type'])) {
     throw new FieldException(t('Attempt to create an instance of field @field_name without an object type.', array('@field_name' => $instance['field_name'])));
   }
   if (empty($instance['bundle'])) {
     throw new FieldException(t('Attempt to create an instance of field @field_name without a bundle.', array('@field_name' => $instance['field_name'])));
   }
   // Check that the field can be attached to this entity type.
-  if (!empty($field['object_types']) && !in_array($instance['object_type'], $field['object_types'])) {
-    throw new FieldException(t('Attempt to create an instance of field @field_name on forbidden object type @obj_type.', array('@field_name' => $instance['field_name'], '@obj_type' => $instance['object_type'])));
+  if (!empty($field['entity_types']) && !in_array($instance['entity_type'], $field['entity_types'])) {
+    throw new FieldException(t('Attempt to create an instance of field @field_name on forbidden object type @entity_type.', array('@field_name' => $instance['field_name'], '@entity_type' => $instance['entity_type'])));
   }
 
   // Set the field id.
@@ -647,7 +647,7 @@ function field_create_instance($instance) {
   // Ensure the field instance is unique within the bundle.
   // We only check for instances of active fields, since adding an instance of
   // a disabled field is not supported.
-  $prior_instance = field_read_instance($instance['object_type'], $instance['field_name'], $instance['bundle']);
+  $prior_instance = field_read_instance($instance['entity_type'], $instance['field_name'], $instance['bundle']);
   if (!empty($prior_instance)) {
     $message = t('Attempt to create an instance of field @field_name on bundle @bundle that already has an instance of that field.', array('@field_name' => $instance['field_name'], '@bundle' => $instance['bundle']));
     throw new FieldException($message);
@@ -688,7 +688,7 @@ function field_update_instance($instance) {
 
   // Check that the field instance exists (even if it is inactive, since we
   // want to be able to replace inactive widgets with new ones).
-  $prior_instance = field_read_instance($instance['object_type'], $instance['field_name'], $instance['bundle'], array('include_inactive' => TRUE));
+  $prior_instance = field_read_instance($instance['entity_type'], $instance['field_name'], $instance['bundle'], array('include_inactive' => TRUE));
   if (empty($prior_instance)) {
     throw new FieldException("Attempt to update a field instance that doesn't exist.");
   }
@@ -769,7 +769,7 @@ function _field_write_instance($instance, $update = FALSE) {
   $record = array(
     'field_id' => $instance['field_id'],
     'field_name' => $instance['field_name'],
-    'object_type' => $instance['object_type'],
+    'entity_type' => $instance['entity_type'],
     'bundle' => $instance['bundle'],
     'data' => $data,
     'deleted' => $instance['deleted'],
@@ -810,7 +810,7 @@ function _field_write_instance($instance, $update = FALSE) {
  *   An instance structure, or FALSE.
  */
 function field_read_instance($entity_type, $field_name, $bundle, $include_additional = array()) {
-  $instances = field_read_instances(array('object_type' => $entity_type, 'field_name' => $field_name, 'bundle' => $bundle), $include_additional);
+  $instances = field_read_instances(array('entity_type' => $entity_type, 'field_name' => $field_name, 'bundle' => $bundle), $include_additional);
   return $instances ? current($instances) : FALSE;
 }
 
@@ -858,13 +858,13 @@ function field_read_instances($params = array(), $include_additional = array())
   foreach ($results as $record) {
     // Filter out instances on unknown entity types (for instance because the
     // module exposing them was disabled).
-    $entity_info = entity_get_info($record['object_type']);
+    $entity_info = entity_get_info($record['entity_type']);
     if ($include_inactive || $entity_info) {
       $instance = unserialize($record['data']);
       $instance['id'] = $record['id'];
       $instance['field_id'] = $record['field_id'];
       $instance['field_name'] = $record['field_name'];
-      $instance['object_type'] = $record['object_type'];
+      $instance['entity_type'] = $record['entity_type'];
       $instance['bundle'] = $record['bundle'];
       $instance['deleted'] = $record['deleted'];
 
@@ -886,7 +886,7 @@ function field_delete_instance($instance) {
   db_update('field_config_instance')
     ->fields(array('deleted' => 1))
     ->condition('field_name', $instance['field_name'])
-    ->condition('object_type', $instance['object_type'])
+    ->condition('entity_type', $instance['entity_type'])
     ->condition('bundle', $instance['bundle'])
     ->execute();
 
diff --git a/modules/field/field.default.inc b/modules/field/field.default.inc
index 4bdd2a83dd89e3833e659eae53b9e23b7c5a2f64..0af3d06c6d0b0c81c146177186398f38d59cb28c 100644
--- a/modules/field/field.default.inc
+++ b/modules/field/field.default.inc
@@ -203,7 +203,7 @@ function field_default_view($entity_type, $entity, $field, $instance, $langcode,
           '#field_name' => $field['field_name'],
           '#field_type' => $field['type'],
           '#field_translatable' => $field['translatable'],
-          '#object_type' => $entity_type,
+          '#entity_type' => $entity_type,
           '#bundle' => $bundle,
           '#object' => $entity,
           '#items' => $items,
diff --git a/modules/field/field.form.inc b/modules/field/field.form.inc
index 3e41b04085a1e47b404b1151c2478d6fbe8fb180..fd7bedbb4ff9ba34c1e085eb48336b5427cb37d6 100644
--- a/modules/field/field.form.inc
+++ b/modules/field/field.form.inc
@@ -50,7 +50,7 @@ function field_default_form($entity_type, $entity, $field, $instance, $langcode,
       $function = $instance['widget']['module'] . '_field_widget_form';
       if (function_exists($function)) {
         $element = array(
-          '#object_type' => $instance['object_type'],
+          '#entity_type' => $instance['entity_type'],
           '#bundle' => $instance['bundle'],
           '#field_name' => $field_name,
           '#language' => $langcode,
@@ -161,7 +161,7 @@ function field_multiple_value_form($field, $instance, $langcode, $items, &$form,
     for ($delta = 0; $delta <= $max; $delta++) {
       $multiple = $field['cardinality'] > 1 || $field['cardinality'] == FIELD_CARDINALITY_UNLIMITED;
       $element = array(
-        '#object_type' => $instance['object_type'],
+        '#entity_type' => $instance['entity_type'],
         '#bundle' => $instance['bundle'],
         '#field_name' => $field_name,
         '#language' => $langcode,
diff --git a/modules/field/field.info.inc b/modules/field/field.info.inc
index 7f911dc1cdaf3512884865a53403f65fa57a7f44..a4517684c4b052fb51cdb953b87054672f7ded5a 100644
--- a/modules/field/field.info.inc
+++ b/modules/field/field.info.inc
@@ -220,13 +220,13 @@ function _field_info_collate_fields($reset = FALSE) {
     foreach ($definitions['instances'] as $instance) {
       $field = $info['fields'][$instance['field_name']];
       $instance = _field_info_prepare_instance($instance, $field);
-      $info['instances'][$instance['object_type']][$instance['bundle']][$instance['field_name']] = $instance;
+      $info['instances'][$instance['entity_type']][$instance['bundle']][$instance['field_name']] = $instance;
       // Enrich field definitions with the list of bundles where they have
       // instances. NOTE: Deleted fields in $info['field_ids'] are not
       // enriched because all of their instances are deleted, too, and
       // are thus not in $definitions['instances'].
-      $info['fields'][$instance['field_name']]['bundles'][$instance['object_type']][] = $instance['bundle'];
-      $info['field_ids'][$instance['field_id']]['bundles'][$instance['object_type']][] = $instance['bundle'];
+      $info['fields'][$instance['field_name']]['bundles'][$instance['entity_type']][] = $instance['bundle'];
+      $info['field_ids'][$instance['field_id']]['bundles'][$instance['entity_type']][] = $instance['bundle'];
     }
   }
 
@@ -291,7 +291,7 @@ function _field_info_prepare_instance($instance, $field) {
   }
 
   // Fallback to 'full' display settings for unspecified view modes.
-  $entity_info = entity_get_info($instance['object_type']);
+  $entity_info = entity_get_info($instance['entity_type']);
   foreach ($entity_info['view modes'] as $view_mode => $info) {
     if (!isset($instance['display'][$view_mode])) {
       $instance['display'][$view_mode] = $instance['display']['full'];
diff --git a/modules/field/field.install b/modules/field/field.install
index 75724c4294a6465393f10b19611249d1f15162e7..3d23d2b6a95404c4a10319cacf205f351dceae60 100644
--- a/modules/field/field.install
+++ b/modules/field/field.install
@@ -130,7 +130,7 @@ function field_schema() {
         'not null' => TRUE,
         'default' => ''
       ),
-      'object_type'       => array(
+      'entity_type'       => array(
         'type' => 'varchar',
         'length' => 32,
         'not null' => TRUE,
@@ -158,7 +158,7 @@ function field_schema() {
     'primary key' => array('id'),
     'indexes' => array(
       // Used by field_delete_instance().
-      'field_name_bundle' => array('field_name', 'object_type', 'bundle'),
+      'field_name_bundle' => array('field_name', 'entity_type', 'bundle'),
       // Used by field_read_instances().
       'deleted' => array('deleted'),
     ),
diff --git a/modules/field/field.module b/modules/field/field.module
index eb36649165755951759e3dff723b001e12ca34a8..c3765cfaa3d4e80b9aa4575651c2ad64e369bfd7 100644
--- a/modules/field/field.module
+++ b/modules/field/field.module
@@ -608,8 +608,8 @@ function field_view_field($entity_type, $entity, $field_name, $display = array()
     // Invoke hook_field_attach_view_alter() to let other modules alter the
     // renderable array, as in a full field_attach_view() execution.
     $context = array(
-      'obj_type' => $entity_type,
-      'object' => $entity,
+      'entity_type' => $entity_type,
+      'entity' => $entity,
       'view_mode' => '_custom',
     );
     drupal_alter('field_attach_view', $result, $context);
diff --git a/modules/field/modules/field_sql_storage/field_sql_storage.module b/modules/field/modules/field_sql_storage/field_sql_storage.module
index 2e7512627ab7749cc7b27ce694f63097812c287f..a768aa9c0140c82f3692dddbad5c24be509181ac 100644
--- a/modules/field/modules/field_sql_storage/field_sql_storage.module
+++ b/modules/field/modules/field_sql_storage/field_sql_storage.module
@@ -577,7 +577,7 @@ function field_sql_storage_field_storage_query($field_id, $conditions, $options)
       // If querying all revisions and the entity type has revisions, we need
       // to key the results by revision_ids.
       $entity_type = entity_get_info($row->type);
-      $id = ($load_current || empty($entity_type['object keys']['revision'])) ? $row->entity_id : $row->revision_id;
+      $id = ($load_current || empty($entity_type['entity keys']['revision'])) ? $row->entity_id : $row->revision_id;
 
       if (!isset($return[$row->type][$id])) {
         $return[$row->type][$id] = entity_create_stub_entity($row->type, array($row->entity_id, $row->revision_id, $row->bundle));
@@ -623,7 +623,7 @@ function field_sql_storage_field_storage_delete_revision($entity_type, $entity,
  * This function simply marks for deletion all data associated with the field.
  */
 function field_sql_storage_field_storage_delete_instance($instance) {
-  $etid = _field_sql_storage_etid($instance['object_type']);
+  $etid = _field_sql_storage_etid($instance['entity_type']);
   $field = field_info_field($instance['field_name']);
   $table_name = _field_sql_storage_tablename($field);
   $revision_name = _field_sql_storage_revision_tablename($field);
@@ -645,7 +645,7 @@ function field_sql_storage_field_storage_delete_instance($instance) {
 function field_sql_storage_field_attach_rename_bundle($entity_type, $bundle_old, $bundle_new) {
   $etid = _field_sql_storage_etid($entity_type);
   // We need to account for deleted or inactive fields and instances.
-  $instances = field_read_instances(array('object_type' => $entity_type, 'bundle' => $bundle_new), array('include_deleted' => TRUE, 'include_inactive' => TRUE));
+  $instances = field_read_instances(array('entity_type' => $entity_type, 'bundle' => $bundle_new), array('include_deleted' => TRUE, 'include_inactive' => TRUE));
   foreach ($instances as $instance) {
     $field = field_info_field_by_id($instance['field_id']);
     if ($field['storage']['type'] == 'field_sql_storage') {
diff --git a/modules/field/modules/field_sql_storage/field_sql_storage.test b/modules/field/modules/field_sql_storage/field_sql_storage.test
index 3a3522f2b738f8c29b0c632f113e77229835dffb..6af10a0b7ef7e0015ad9441114360da02e422621 100644
--- a/modules/field/modules/field_sql_storage/field_sql_storage.test
+++ b/modules/field/modules/field_sql_storage/field_sql_storage.test
@@ -28,7 +28,7 @@ class FieldSqlStorageTestCase extends DrupalWebTestCase {
     $this->field = field_create_field($this->field);
     $this->instance = array(
       'field_name' => $this->field_name,
-      'object_type' => 'test_entity',
+      'entity_type' => 'test_entity',
       'bundle' => 'test_bundle'
     );
     $this->instance = field_create_instance($this->instance);
@@ -303,7 +303,7 @@ class FieldSqlStorageTestCase extends DrupalWebTestCase {
     // Create a decimal 5.2 field and add some data.
     $field = array('field_name' => 'decimal52', 'type' => 'number_decimal', 'settings' => array('precision' => 5, 'scale' => 2));
     $field = field_create_field($field);
-    $instance = array('field_name' => 'decimal52', 'object_type' => 'test_entity', 'bundle' => 'test_bundle');
+    $instance = array('field_name' => 'decimal52', 'entity_type' => 'test_entity', 'bundle' => 'test_bundle');
     $instance = field_create_instance($instance);
     $entity = field_test_create_stub_entity(0, 0, $instance['bundle']);
     $entity->decimal52[LANGUAGE_NONE][0]['value'] = '1.235';
@@ -329,7 +329,7 @@ class FieldSqlStorageTestCase extends DrupalWebTestCase {
     $field_name = 'testfield';
     $field = array('field_name' => $field_name, 'type' => 'text');
     $field = field_create_field($field);
-    $instance = array('field_name' => $field_name, 'object_type' => 'test_entity', 'bundle' => 'test_bundle');
+    $instance = array('field_name' => $field_name, 'entity_type' => 'test_entity', 'bundle' => 'test_bundle');
     $instance = field_create_instance($instance);
     $tables = array(_field_sql_storage_tablename($field), _field_sql_storage_revision_tablename($field));
 
@@ -374,7 +374,7 @@ class FieldSqlStorageTestCase extends DrupalWebTestCase {
 
     // Retrieve the field and instance with field_info so the storage details are attached.
     $field = field_info_field($this->field['field_name']);
-    $instance = field_info_instance($this->instance['object_type'], $this->instance['field_name'], $this->instance['bundle']);
+    $instance = field_info_instance($this->instance['entity_type'], $this->instance['field_name'], $this->instance['bundle']);
 
     // The storage details are indexed by a storage engine type.
     $this->assertTrue(array_key_exists('sql', $field['storage']['details']), t('The storage type is SQL.'));
diff --git a/modules/field/modules/list/tests/list.test b/modules/field/modules/list/tests/list.test
index 73c94a4a0e84f7422636eb19d6e2c266eed0e6b8..b4ab856c38def68a62b542122dd6bdaea3c0d179 100644
--- a/modules/field/modules/list/tests/list.test
+++ b/modules/field/modules/list/tests/list.test
@@ -34,7 +34,7 @@ class ListFieldTestCase extends FieldTestCase {
 
     $this->instance = array(
       'field_name' => $this->field_name,
-      'object_type' => 'test_entity',
+      'entity_type' => 'test_entity',
       'bundle' => 'test_bundle',
       'widget' => array(
         'type' => 'options_buttons',
@@ -82,7 +82,7 @@ class ListFieldTestCase extends FieldTestCase {
     $this->field = field_create_field($this->field);
     $this->instance = array(
       'field_name' => $this->field_name,
-      'object_type' => 'test_entity',
+      'entity_type' => 'test_entity',
       'bundle' => 'test_bundle',
       'widget' => array(
         'type' => 'options_buttons',
@@ -184,7 +184,7 @@ class ListFieldUITestCase extends FieldTestCase {
     field_create_field($field);
     $instance = array(
       'field_name' => $field_name,
-      'object_type' => 'node',
+      'entity_type' => 'node',
       'bundle' => $this->type,
     );
     field_create_instance($instance);
diff --git a/modules/field/modules/options/options.test b/modules/field/modules/options/options.test
index 764c45c52bc74dbe1ddcbc8139c955784b80ee4b..2d441204a863f049442efaecbb8948fea0bb1cff 100644
--- a/modules/field/modules/options/options.test
+++ b/modules/field/modules/options/options.test
@@ -61,7 +61,7 @@ class OptionsWidgetsTestCase extends FieldTestCase {
     // Create an instance of the 'single value' field.
     $instance = array(
       'field_name' => $this->card_1['field_name'],
-      'object_type' => 'test_entity',
+      'entity_type' => 'test_entity',
       'bundle' => 'test_bundle',
       'widget' => array(
         'type' => 'options_buttons',
@@ -118,7 +118,7 @@ class OptionsWidgetsTestCase extends FieldTestCase {
     // Create an instance of the 'multiple values' field.
     $instance = array(
       'field_name' => $this->card_2['field_name'],
-      'object_type' => 'test_entity',
+      'entity_type' => 'test_entity',
       'bundle' => 'test_bundle',
       'widget' => array(
         'type' => 'options_buttons',
@@ -205,7 +205,7 @@ class OptionsWidgetsTestCase extends FieldTestCase {
     // Create an instance of the 'single value' field.
     $instance = array(
       'field_name' => $this->card_1['field_name'],
-      'object_type' => 'test_entity',
+      'entity_type' => 'test_entity',
       'bundle' => 'test_bundle',
       'widget' => array(
         'type' => 'options_select',
@@ -292,7 +292,7 @@ class OptionsWidgetsTestCase extends FieldTestCase {
     // Create an instance of the 'multiple values' field.
     $instance = array(
       'field_name' => $this->card_2['field_name'],
-      'object_type' => 'test_entity',
+      'entity_type' => 'test_entity',
       'bundle' => 'test_bundle',
       'widget' => array(
         'type' => 'options_select',
@@ -409,7 +409,7 @@ class OptionsWidgetsTestCase extends FieldTestCase {
     // Create an instance of the 'boolean' field.
     $instance = array(
       'field_name' => $this->bool['field_name'],
-      'object_type' => 'test_entity',
+      'entity_type' => 'test_entity',
       'bundle' => 'test_bundle',
       'widget' => array(
         'type' => 'options_onoff',
diff --git a/modules/field/modules/text/text.test b/modules/field/modules/text/text.test
index 2a239e3be66e6acd3f9dcae5d84be0b63af25a00..6e9c41ac456fa2cbf431ca27a39bc746640268c7 100644
--- a/modules/field/modules/text/text.test
+++ b/modules/field/modules/text/text.test
@@ -40,7 +40,7 @@ class TextFieldTestCase extends DrupalWebTestCase {
     field_create_field($this->field);
     $this->instance = array(
       'field_name' => $this->field['field_name'],
-      'object_type' => 'test_entity',
+      'entity_type' => 'test_entity',
       'bundle' => 'test_bundle',
       'widget' => array(
         'type' => 'text_textfield',
@@ -86,7 +86,7 @@ class TextFieldTestCase extends DrupalWebTestCase {
     field_create_field($this->field);
     $this->instance = array(
       'field_name' => $this->field_name,
-      'object_type' => 'test_entity',
+      'entity_type' => 'test_entity',
       'bundle' => 'test_bundle',
       'label' => $this->randomName() . '_label',
       'settings' => array(
@@ -140,7 +140,7 @@ class TextFieldTestCase extends DrupalWebTestCase {
     field_create_field($this->field);
     $this->instance = array(
       'field_name' => $this->field_name,
-      'object_type' => 'test_entity',
+      'entity_type' => 'test_entity',
       'bundle' => 'test_bundle',
       'label' => $this->randomName() . '_label',
       'settings' => array(
diff --git a/modules/field/tests/field.test b/modules/field/tests/field.test
index 8fa4820b4ab2121853c7ce5aa35f18d1f1e5cbd8..ed02a14f442d063c6b42b257229edba780461aac 100644
--- a/modules/field/tests/field.test
+++ b/modules/field/tests/field.test
@@ -78,7 +78,7 @@ class FieldAttachTestCase extends FieldTestCase {
     $this->field_id = $this->field['id'];
     $this->instance = array(
       'field_name' => $this->field_name,
-      'object_type' => 'test_entity',
+      'entity_type' => 'test_entity',
       'bundle' => 'test_bundle',
       'label' => $this->randomName() . '_label',
       'description' => $this->randomName() . '_description',
@@ -207,7 +207,7 @@ class FieldAttachStorageTestCase extends FieldAttachTestCase {
       foreach ($field_bundles_map[$i] as $bundle) {
         $instance = array(
           'field_name' => $field_names[$i],
-          'object_type' => 'test_entity',
+          'entity_type' => 'test_entity',
           'bundle' => $bundles[$bundle],
           'settings' => array(
             // Configure the instance so that we test hook_field_load()
@@ -278,7 +278,7 @@ class FieldAttachStorageTestCase extends FieldAttachTestCase {
       field_create_field($field);
       $instance = array(
         'field_name' => $field['field_name'],
-        'object_type' => 'test_entity',
+        'entity_type' => 'test_entity',
         'bundle' => 'test_bundle',
       );
       field_create_instance($instance);
@@ -319,13 +319,13 @@ class FieldAttachStorageTestCase extends FieldAttachTestCase {
     $field = field_create_field($field);
     $instance = array(
       'field_name' => $field_name,
-      'object_type' => 'test_entity',
+      'entity_type' => 'test_entity',
       'bundle' => 'test_bundle',
     );
     field_create_instance($instance);
 
     $field = field_info_field($instance['field_name']);
-    $instance = field_info_instance($instance['object_type'], $instance['field_name'], $instance['bundle']);
+    $instance = field_info_instance($instance['entity_type'], $instance['field_name'], $instance['bundle']);
 
     // The storage details are indexed by a storage engine type.
     $this->assertTrue(array_key_exists('drupal_variables', $field['storage']['details']), t('The storage type is Drupal variables.'));
@@ -570,7 +570,7 @@ class FieldAttachStorageTestCase extends FieldAttachTestCase {
     field_create_field($field);
     $instance = array(
       'field_name' => $field_name,
-      'object_type' => 'test_entity',
+      'entity_type' => 'test_entity',
       'bundle' => $this->instance['bundle'],
       'label' => $this->randomName() . '_label',
       'description' => $this->randomName() . '_description',
@@ -626,10 +626,10 @@ class FieldAttachStorageTestCase extends FieldAttachTestCase {
 
     // Create instances of both fields on the second entity type.
     $instance = $this->instance;
-    $instance['object_type'] = 'test_cacheable_entity';
+    $instance['entity_type'] = 'test_cacheable_entity';
     field_create_instance($instance);
     $instance2 = $this->instance2;
-    $instance2['object_type'] = 'test_cacheable_entity';
+    $instance2['entity_type'] = 'test_cacheable_entity';
     field_create_instance($instance2);
 
     // Unconditional count query returns 0.
@@ -990,7 +990,7 @@ class FieldAttachOtherTestCase extends FieldAttachTestCase {
     $entity_type = 'test_cacheable_entity';
     $cid = "field:$entity_type:{$entity_init->ftid}";
     $instance = $this->instance;
-    $instance['object_type'] = $entity_type;
+    $instance['entity_type'] = $entity_type;
     field_create_instance($instance);
 
     // Check that no initial cache entry is present.
@@ -1247,7 +1247,7 @@ class FieldInfoTestCase extends FieldTestCase {
     // Create an instance, verify that it shows up
     $instance = array(
       'field_name' => $field['field_name'],
-      'object_type' => 'test_entity',
+      'entity_type' => 'test_entity',
       'bundle' => 'test_bundle',
       'label' => $this->randomName(),
       'description' => $this->randomName(),
@@ -1306,7 +1306,7 @@ class FieldInfoTestCase extends FieldTestCase {
     field_create_field($field_definition);
     $instance_definition = array(
       'field_name' => $field_definition['field_name'],
-      'object_type' => 'test_entity',
+      'entity_type' => 'test_entity',
       'bundle' => 'test_bundle',
     );
     field_create_instance($instance_definition);
@@ -1330,7 +1330,7 @@ class FieldInfoTestCase extends FieldTestCase {
     field_cache_clear();
 
     // Read the instance back.
-    $instance = field_info_instance($instance_definition['object_type'], $instance_definition['field_name'], $instance_definition['bundle']);
+    $instance = field_info_instance($instance_definition['entity_type'], $instance_definition['field_name'], $instance_definition['bundle']);
 
     // Check that all expected instance settings are in place.
     $field_type = field_info_field_types($field_definition['type']);
@@ -1363,7 +1363,7 @@ class FieldInfoTestCase extends FieldTestCase {
     field_create_field($field_definition);
     $instance_definition = array(
       'field_name' => 'field',
-      'object_type' => 'comment',
+      'entity_type' => 'comment',
       'bundle' => 'comment_node_article',
     );
     field_create_instance($instance_definition);
@@ -1415,7 +1415,7 @@ class FieldFormTestCase extends FieldTestCase {
     $this->field_unlimited = array('field_name' => drupal_strtolower($this->randomName()), 'type' => 'test_field', 'cardinality' => FIELD_CARDINALITY_UNLIMITED);
 
     $this->instance = array(
-      'object_type' => 'test_entity',
+      'entity_type' => 'test_entity',
       'bundle' => 'test_bundle',
       'label' => $this->randomName() . '_label',
       'description' => $this->randomName() . '_description',
@@ -1711,7 +1711,7 @@ class FieldFormTestCase extends FieldTestCase {
     $field_name_no_access = $field_no_access['field_name'];
     $instance_no_access = array(
       'field_name' => $field_name_no_access,
-      'object_type' => 'test_entity',
+      'entity_type' => 'test_entity',
       'bundle' => 'test_bundle',
       'default_value' => array(0 => array('value' => 99)),
     );
@@ -1775,7 +1775,7 @@ class FieldDisplayAPITestCase extends FieldTestCase {
     );
     $this->instance = array(
       'field_name' => $this->field_name,
-      'object_type' => 'test_entity',
+      'entity_type' => 'test_entity',
       'bundle' => 'test_bundle',
       'label' => $this->label,
       'display' => array(
@@ -2173,7 +2173,7 @@ class FieldCrudTestCase extends FieldTestCase {
     // Create instances for each.
     $this->instance_definition = array(
       'field_name' => $this->field['field_name'],
-      'object_type' => 'test_entity',
+      'entity_type' => 'test_entity',
       'bundle' => 'test_bundle',
       'widget' => array(
         'type' => 'test_field_widget',
@@ -2271,7 +2271,7 @@ class FieldCrudTestCase extends FieldTestCase {
     // Create a decimal 5.2 field.
     $field = array('field_name' => 'decimal53', 'type' => 'number_decimal', 'cardinality' => 3, 'settings' => array('precision' => 5, 'scale' => 2));
     $field = field_create_field($field);
-    $instance = array('field_name' => 'decimal53', 'object_type' => 'test_entity', 'bundle' => 'test_bundle');
+    $instance = array('field_name' => 'decimal53', 'entity_type' => 'test_entity', 'bundle' => 'test_bundle');
     $instance = field_create_instance($instance);
 
     // Update it to a deciaml 5.3 field.
@@ -2402,7 +2402,7 @@ class FieldInstanceCrudTestCase extends FieldTestCase {
     field_create_field($this->field);
     $this->instance_definition = array(
       'field_name' => $this->field['field_name'],
-      'object_type' => 'test_entity',
+      'entity_type' => 'test_entity',
       'bundle' => 'test_bundle',
     );
   }
@@ -2464,7 +2464,7 @@ class FieldInstanceCrudTestCase extends FieldTestCase {
     $field_restricted = array(
       'field_name' => drupal_strtolower($this->randomName()),
       'type' => 'test_field',
-      'object_types' => array('test_cacheable_entity'),
+      'entity_types' => array('test_cacheable_entity'),
     );
     field_create_field($field_restricted);
 
@@ -2473,7 +2473,7 @@ class FieldInstanceCrudTestCase extends FieldTestCase {
     try {
       $instance = $this->instance_definition;
       $instance['field_name'] = $field_restricted['field_name'];
-      $instance['object_type'] = 'test_cacheable_entity';
+      $instance['entity_type'] = 'test_cacheable_entity';
       field_create_instance($instance);
       $this->pass(t('Can create an instance on an entity type allowed by the field.'));
     }
@@ -2620,7 +2620,7 @@ class FieldTranslationsTestCase extends FieldTestCase {
 
     $this->field_name = drupal_strtolower($this->randomName() . '_field_name');
 
-    $this->obj_type = 'test_entity';
+    $this->entity_type = 'test_entity';
 
     $field = array(
       'field_name' => $this->field_name,
@@ -2633,7 +2633,7 @@ class FieldTranslationsTestCase extends FieldTestCase {
 
     $instance = array(
       'field_name' => $this->field_name,
-      'object_type' => $this->obj_type,
+      'entity_type' => $this->entity_type,
       'bundle' => 'test_bundle',
     );
     field_create_instance($instance);
@@ -2660,7 +2660,7 @@ class FieldTranslationsTestCase extends FieldTestCase {
     // Test hook_field_languages() invocation on a translatable field.
     variable_set('field_test_field_available_languages_alter', TRUE);
     $enabled_languages = field_content_languages();
-    $available_languages = field_available_languages($this->obj_type, $this->field);
+    $available_languages = field_available_languages($this->entity_type, $this->field);
     foreach ($available_languages as $delta => $langcode) {
       if ($langcode != 'xx' && $langcode != 'en') {
         $this->assertTrue(in_array($langcode, $enabled_languages), t('%language is an enabled language.', array('%language' => $langcode)));
@@ -2672,7 +2672,7 @@ class FieldTranslationsTestCase extends FieldTestCase {
     // Test field_available_languages() behavior for untranslatable fields.
     $this->field['translatable'] = FALSE;
     $this->field_name = $this->field['field_name'] = $this->instance['field_name'] = drupal_strtolower($this->randomName() . '_field_name');
-    $available_languages = field_available_languages($this->obj_type, $this->field);
+    $available_languages = field_available_languages($this->entity_type, $this->field);
     $this->assertTrue(count($available_languages) == 1 && $available_languages[0] === LANGUAGE_NONE, t('For untranslatable fields only LANGUAGE_NONE is available.'));
   }
 
@@ -2687,7 +2687,7 @@ class FieldTranslationsTestCase extends FieldTestCase {
     // the result of field_available_languages().
     $values = array();
     $extra_languages = mt_rand(1, 4);
-    $languages = $available_languages = field_available_languages($this->obj_type, $this->field);
+    $languages = $available_languages = field_available_languages($this->entity_type, $this->field);
     for ($i = 0; $i < $extra_languages; ++$i) {
       $languages[] = $this->randomString(2);
     }
@@ -2718,7 +2718,7 @@ class FieldTranslationsTestCase extends FieldTestCase {
     $entities = array();
     $entity_type = 'test_entity';
     $entity_count = mt_rand(1, 5);
-    $available_languages = field_available_languages($this->obj_type, $this->field);
+    $available_languages = field_available_languages($this->entity_type, $this->field);
 
     for ($id = 1; $id <= $entity_count; ++$id) {
       $entity = field_test_create_stub_entity($id, $id, $this->instance['bundle']);
@@ -2809,7 +2809,7 @@ class FieldTranslationsTestCase extends FieldTestCase {
 
     $instance = array(
       'field_name' => $field['field_name'],
-      'object_type' => $entity_type,
+      'entity_type' => $entity_type,
       'bundle' => 'test_bundle',
     );
     field_create_instance($instance);
@@ -2938,7 +2938,7 @@ class FieldBulkDeleteTestCase extends FieldTestCase {
       foreach ($this->fields as $field) {
         $instance = array(
           'field_name' => $field['field_name'],
-          'object_type' => $this->entity_type,
+          'entity_type' => $this->entity_type,
           'bundle' => $bundle,
           'widget' => array(
             'type' => 'test_field_widget',
diff --git a/modules/field/tests/field_test.entity.inc b/modules/field/tests/field_test.entity.inc
index eef3dbf730f0900f81e60bc2aecca14b67af73ac..8c32602ea09d8d0eebb3c1f98a008c3a2e09de5f 100644
--- a/modules/field/tests/field_test.entity.inc
+++ b/modules/field/tests/field_test.entity.inc
@@ -23,7 +23,7 @@ function field_test_entity_info() {
   return array(
     'test_entity' => array(
       'name' => t('Test Entity'),
-      'object keys' => array(
+      'entity keys' => array(
         'id' => 'ftid',
         'revision' => 'ftvid',
         'bundle' => 'fttype',
@@ -36,7 +36,7 @@ function field_test_entity_info() {
     // This entity type doesn't get form handling for now...
     'test_cacheable_entity' => array(
       'name' => t('Test Entity, cacheable'),
-      'object keys' => array(
+      'entity keys' => array(
         'id' => 'ftid',
         'revision' => 'ftvid',
         'bundle' => 'fttype',
diff --git a/modules/field/tests/field_test.storage.inc b/modules/field/tests/field_test.storage.inc
index 6ce2720408dff84e3c31641bab7de59afc60bb99..53259883277999788c19280e814276647c2739cf 100644
--- a/modules/field/tests/field_test.storage.inc
+++ b/modules/field/tests/field_test.storage.inc
@@ -323,7 +323,7 @@ function field_test_field_storage_query($field_id, $conditions, $count, &$cursor
           // If querying all revisions and the entity type has revisions, we need
           // to key the results by revision_ids.
           $entity_type = entity_get_info($row->type);
-          $id = ($load_current || empty($entity_type['object keys']['revision'])) ? $row->entity_id : $row->revision_id;
+          $id = ($load_current || empty($entity_type['entity keys']['revision'])) ? $row->entity_id : $row->revision_id;
 
           if (!isset($return[$row->type][$id])) {
             $return[$row->type][$id] = entity_create_stub_entity($row->type, array($row->entity_id, $row->revision_id, $row->bundle));
diff --git a/modules/field_ui/field_ui.admin.inc b/modules/field_ui/field_ui.admin.inc
index 590396479bed090db092d662d0bfb35bd171caa7..ba892719276367c1eea1ea9866d63a679536434d 100644
--- a/modules/field_ui/field_ui.admin.inc
+++ b/modules/field_ui/field_ui.admin.inc
@@ -90,7 +90,7 @@ function field_ui_field_overview_form($form, &$form_state, $entity_type, $bundle
 
   $form += array(
     '#tree' => TRUE,
-    '#object_type' => $entity_type,
+    '#entity_type' => $entity_type,
     '#bundle' => $bundle,
     '#fields' => array_keys($instances),
     '#extra' => array_keys($extra),
@@ -289,9 +289,9 @@ function template_preprocess_field_ui_field_overview_form(&$vars) {
   drupal_add_js(drupal_get_path('module', 'field_ui') . '/field_ui.js');
   // Add settings for the update selects behavior.
   $js_fields = array();
-  foreach (field_ui_existing_field_options($form['#object_type'], $form['#bundle']) as $field_name => $fields) {
+  foreach (field_ui_existing_field_options($form['#entity_type'], $form['#bundle']) as $field_name => $fields) {
     $field = field_info_field($field_name);
-    $instance = field_info_instance($form['#object_type'], $field_name, $form['#bundle']);
+    $instance = field_info_instance($form['#entity_type'], $field_name, $form['#bundle']);
     $js_fields[$field_name] = array('label' => $instance['label'], 'type' => $field['type'], 'widget' => $instance['widget']['type']);
   }
   drupal_add_js(array('fieldWidgetTypes' => field_ui_widget_type_options(), 'fields' => $js_fields), 'setting');
@@ -459,7 +459,7 @@ function _field_ui_field_overview_form_validate_add_existing($form, &$form_state
  */
 function field_ui_field_overview_form_submit($form, &$form_state) {
   $form_values = $form_state['values'];
-  $entity_type = $form['#object_type'];
+  $entity_type = $form['#entity_type'];
   $bundle = $form['#bundle'];
   $admin_path = _field_ui_bundle_admin_path($entity_type, $bundle);
 
@@ -497,7 +497,7 @@ function field_ui_field_overview_form_submit($form, &$form_state) {
     );
     $instance = array(
       'field_name' => $field['field_name'],
-      'object_type' => $entity_type,
+      'entity_type' => $entity_type,
       'bundle' => $bundle,
       'label' => $values['label'],
       'widget' => array(
@@ -532,7 +532,7 @@ function field_ui_field_overview_form_submit($form, &$form_state) {
     else {
       $instance = array(
         'field_name' => $field['field_name'],
-        'object_type' => $entity_type,
+        'entity_type' => $entity_type,
         'bundle' => $bundle,
         'label' => $values['label'],
         'widget' => array(
@@ -580,7 +580,7 @@ function field_ui_display_overview_form($form, &$form_state, $entity_type, $bund
 
   $form += array(
     '#tree' => TRUE,
-    '#object_type' => $entity_type,
+    '#entity_type' => $entity_type,
     '#bundle' => $bundle,
     '#fields' => array_keys($instances),
     '#contexts' => $view_modes_selector,
@@ -635,8 +635,8 @@ function template_preprocess_field_ui_display_overview_form(&$vars) {
   $form = &$vars['form'];
 
   $contexts_selector = $form['#contexts'];
-  $view_modes = field_ui_view_modes_tabs($form['#object_type'], $contexts_selector);
-  $entity_info = entity_get_info($form['#object_type']);
+  $view_modes = field_ui_view_modes_tabs($form['#entity_type'], $contexts_selector);
+  $entity_info = entity_get_info($form['#entity_type']);
   $view_modes_info = $entity_info['view modes'];
   $vars['contexts'] = array();
   foreach ($view_modes as $view_mode) {
@@ -677,7 +677,7 @@ function field_ui_display_overview_form_submit($form, &$form_state) {
   $form_values = $form_state['values'];
   foreach ($form_values as $key => $values) {
     if (in_array($key, $form['#fields'])) {
-      $instance = field_info_instance($form['#object_type'], $key, $form['#bundle']);
+      $instance = field_info_instance($form['#entity_type'], $key, $form['#bundle']);
       foreach ($instance['display'] as $view_mode => $display) {
         if (isset($values[$view_mode])) {
           $instance['display'][$view_mode] = array_merge($instance['display'][$view_mode], $values[$view_mode]);
@@ -793,7 +793,7 @@ function field_ui_existing_field_options($entity_type, $bundle) {
           // - field that cannot be added to the entity type.
           if (empty($field['locked'])
             && !field_info_instance($entity_type, $field['field_name'], $bundle)
-            && (empty($field['object_types']) || in_array($entity_type, $field['object_types']))) {
+            && (empty($field['entity_types']) || in_array($entity_type, $field['entity_types']))) {
             $text = t('@type: @field (@label)', array(
               '@type' => $field_types[$field['type']]['label'],
               '@label' => t($instance['label']), '@field' => $instance['field_name'],
@@ -860,7 +860,7 @@ function field_ui_field_settings_form($form, &$form_state, $entity_type, $bundle
       '#markup' => t('%field has no field settings.', array('%field' => $instance['label'])),
     );
   }
-  $form['#object_type'] = $entity_type;
+  $form['#entity_type'] = $entity_type;
   $form['#bundle'] = $bundle;
 
   $form['actions'] = array('#type' => 'container', '#attributes' => array('class' => array('form-actions')));
@@ -878,7 +878,7 @@ function field_ui_field_settings_form_submit($form, &$form_state) {
   // Merge incoming form values into the existing field.
   $field = field_info_field($field_values['field_name']);
 
-  $entity_type = $form['#object_type'];
+  $entity_type = $form['#entity_type'];
   $bundle = $form['#bundle'];
   $instance = field_info_instance($entity_type, $field['field_name'], $bundle);
 
@@ -940,7 +940,7 @@ function field_ui_widget_type_form_submit($form, &$form_state) {
   $form_values = $form_state['values'];
   $instance = $form['#instance'];
   $bundle = $instance['bundle'];
-  $entity_type = $instance['object_type'];
+  $entity_type = $instance['entity_type'];
 
   // Set the right module information.
   $widget_type = field_info_widget_types($form_values['widget_type']);
@@ -967,7 +967,7 @@ function field_ui_field_delete_form($form, &$form_state, $entity_type, $bundle,
   $instance = field_info_instance($entity_type, $field['field_name'], $bundle);
   $admin_path = _field_ui_bundle_admin_path($entity_type, $bundle);
 
-  $form['object_type'] = array('#type' => 'value', '#value' => $entity_type);
+  $form['entity_type'] = array('#type' => 'value', '#value' => $entity_type);
   $form['bundle'] = array('#type' => 'value', '#value' => $bundle);
   $form['field_name'] = array('#type' => 'value', '#value' => $field['field_name']);
 
@@ -994,7 +994,7 @@ function field_ui_field_delete_form_submit($form, &$form_state) {
   $form_values = $form_state['values'];
   $field_name = $form_values['field_name'];
   $bundle = $form_values['bundle'];
-  $entity_type = $form_values['object_type'];
+  $entity_type = $form_values['entity_type'];
 
   $field = field_info_field($field_name);
   $instance = field_info_instance($entity_type, $field_name, $bundle);
@@ -1054,7 +1054,7 @@ function field_ui_field_edit_form($form, &$form_state, $entity_type, $bundle, $f
     '#type' => 'value',
     '#value' => $instance['field_name'],
   );
-  $form['instance']['object_type'] = array(
+  $form['instance']['entity_type'] = array(
     '#type' => 'value',
     '#value' => $entity_type,
   );
@@ -1262,13 +1262,13 @@ function field_ui_field_edit_form_submit($form, &$form_state) {
   $instance['default_value'] = $items ? $items : NULL;
 
   // Update the instance settings.
-  $instance_source = field_info_instance($instance['object_type'], $instance['field_name'], $instance['bundle']);
+  $instance_source = field_info_instance($instance['entity_type'], $instance['field_name'], $instance['bundle']);
   $instance = array_merge($instance_source, $instance);
   field_update_instance($instance);
 
   drupal_set_message(t('Saved %label configuration.', array('%label' => $instance['label'])));
 
-  $form_state['redirect'] = field_ui_next_destination($instance['object_type'], $instance['bundle']);
+  $form_state['redirect'] = field_ui_next_destination($instance['entity_type'], $instance['bundle']);
 }
 
 /**
diff --git a/modules/field_ui/field_ui.module b/modules/field_ui/field_ui.module
index 9b1080c67213553ad9b4c2db8925baa16217061a..2642d80f3d94c6dde32dcd63c75a1ba8cbf48538 100644
--- a/modules/field_ui/field_ui.module
+++ b/modules/field_ui/field_ui.module
@@ -300,7 +300,7 @@ function field_ui_inactive_instances($entity_type, $bundle_name = NULL) {
     $inactive = array();
     $params = array();
   }
-  $params['object_type'] = $entity_type;
+  $params['entity_type'] = $entity_type;
 
   $active_instances = field_info_instances($entity_type);
   $all_instances = field_read_instances($params, array('include_inactive' => TRUE));
diff --git a/modules/field_ui/field_ui.test b/modules/field_ui/field_ui.test
index 510a093565c3fda6e4453929968de07e7a6db598..e1bdc8185ad77b968479232ce030fc56897c8143 100644
--- a/modules/field_ui/field_ui.test
+++ b/modules/field_ui/field_ui.test
@@ -179,7 +179,7 @@ class FieldUITestCase extends DrupalWebTestCase {
     field_create_field($field);
     $instance = array(
       'field_name' => $field_name,
-      'object_type' => 'node',
+      'entity_type' => 'node',
       'bundle' => $this->type,
     );
     field_create_instance($instance);
diff --git a/modules/file/file.field.inc b/modules/file/file.field.inc
index a304573b0aba14a297facc7f83be762c61b12919..57c47ae1e6fef3e7161b326e779656c759872cf2 100644
--- a/modules/file/file.field.inc
+++ b/modules/file/file.field.inc
@@ -246,7 +246,7 @@ function file_field_prepare_view($entity_type, $entities, $field, $instances, $l
 /**
  * Implements hook_field_presave().
  */
-function file_field_presave($obj_type, $object, $field, $instance, $langcode, &$items) {
+function file_field_presave($entity_type, $entity, $field, $instance, $langcode, &$items) {
   // Make sure that each file which will be saved with this object has a
   // permanent status, so that it will not be removed when temporary files are
   // cleaned up.
diff --git a/modules/file/file.module b/modules/file/file.module
index 0eba8471560932caba2ca0dea6231443a8ee3dd6..84a006dd680a793932f1fe11194718a4ac8718b3 100644
--- a/modules/file/file.module
+++ b/modules/file/file.module
@@ -915,7 +915,7 @@ function file_get_file_reference_count($file, $field = NULL, $field_type = NULL)
         if (isset($file->file_field_type) && isset($file->file_field_id)) {
           if ($file->file_field_type == $entity_type) {
             $info = entity_get_info($entity_type);
-            $id = $types[$entity_type]['object keys']['id'];
+            $id = $types[$entity_type]['entity keys']['id'];
             foreach ($type_references as $reference) {
               if ($file->file_field_id == $reference->$id) {
                 $reference_count--;
diff --git a/modules/file/tests/file.test b/modules/file/tests/file.test
index 2a731ffd193676330be43de9a8f6551bb64edd51..7a9a140954cecc7fd4596a9ca8eb8f9b8dc04dfd 100644
--- a/modules/file/tests/file.test
+++ b/modules/file/tests/file.test
@@ -57,7 +57,7 @@ class FileFieldTestCase extends DrupalWebTestCase {
 
     $instance = array(
       'field_name' => $field['field_name'],
-      'object_type' => 'node',
+      'entity_type' => 'node',
       'label' => $name,
       'bundle' => $type_name,
       'required' => !empty($instance_settings['required']),
diff --git a/modules/forum/forum.install b/modules/forum/forum.install
index 5fb0cc9e8ef616875fbd2ea55fe04f89aea42371..5c4957cbb00d13b43a3f08bdfaea2f5a38939a49 100644
--- a/modules/forum/forum.install
+++ b/modules/forum/forum.install
@@ -55,7 +55,7 @@ function forum_enable() {
 
     $instance = array(
       'field_name' => 'taxonomy_' . $vocabulary->machine_name,
-      'object_type' => 'node',
+      'entity_type' => 'node',
       'label' => $vocabulary->name,
       'bundle' => 'forum',
       'widget' => array(
diff --git a/modules/image/image.field.inc b/modules/image/image.field.inc
index 55ba5c9396b6769e2121ae28ceb165889fabc77a..20c1294d4efcc850278f2c6efca3ded9c724be39 100644
--- a/modules/image/image.field.inc
+++ b/modules/image/image.field.inc
@@ -228,8 +228,8 @@ function image_field_prepare_view($entity_type, $entities, $field, $instances, $
 /**
  * Implements hook_field_presave().
  */
-function image_field_presave($obj_type, $object, $field, $instance, $langcode, &$items) {
-  file_field_presave($obj_type, $object, $field, $instance, $langcode, $items);
+function image_field_presave($entity_type, $entity, $field, $instance, $langcode, &$items) {
+  file_field_presave($entity_type, $entity, $field, $instance, $langcode, $items);
 }
 
 /**
diff --git a/modules/image/image.test b/modules/image/image.test
index 54ca9084c742fdd5b238230f6f4321699ebc5537..99b8c50b93d2fffcb4e3dd60f8687975922284e1 100644
--- a/modules/image/image.test
+++ b/modules/image/image.test
@@ -543,7 +543,7 @@ class ImageFieldTestCase extends DrupalWebTestCase {
 
     $instance = array(
       'field_name' => $field['field_name'],
-      'object_type' => 'node',
+      'entity_type' => 'node',
       'label' => $name,
       'bundle' => $type_name,
       'required' => !empty($instance_settings['required']),
diff --git a/modules/node/node.module b/modules/node/node.module
index 1b5596be33cbdf23c08647f5eb8c978fecb70ba6..68a7c2f6dab08478c6dca110a905d9f533058bf6 100644
--- a/modules/node/node.module
+++ b/modules/node/node.module
@@ -183,7 +183,7 @@ function node_entity_info() {
       'revision table' => 'node_revision',
       'uri callback' => 'node_uri',
       'fieldable' => TRUE,
-      'object keys' => array(
+      'entity keys' => array(
         'id' => 'nid',
         'revision' => 'vid',
         'bundle' => 'type',
@@ -563,7 +563,7 @@ function node_configure_fields($type) {
       $field = array(
         'field_name' => 'body',
         'type' => 'text_with_summary',
-        'object_types' => array('node'),
+        'entity_types' => array('node'),
         'translatable' => TRUE,
       );
       $field = field_create_field($field);
@@ -571,7 +571,7 @@ function node_configure_fields($type) {
     if (empty($instance)) {
       $instance = array(
         'field_name' => 'body',
-        'object_type' => 'node',
+        'entity_type' => 'node',
         'bundle' => $type->type,
         'label' => $type->body_label,
         'widget_type' => 'text_textarea_with_summary',
diff --git a/modules/rdf/rdf.module b/modules/rdf/rdf.module
index cc18d5f412c91c4647b56e0d0e174016ea3189bf..03c153b8ee818b7504303666f9276fd2b3245b41 100644
--- a/modules/rdf/rdf.module
+++ b/modules/rdf/rdf.module
@@ -507,7 +507,7 @@ function rdf_preprocess_node(&$variables) {
  */
 function rdf_preprocess_field(&$variables) {
   $element = $variables['element'];
-  $mapping = rdf_mapping_load($element['#object_type'], $element['#bundle']);
+  $mapping = rdf_mapping_load($element['#entity_type'], $element['#bundle']);
   $field_name = $element['#field_name'];
 
   if (!empty($mapping) && !empty($mapping[$field_name])) {
diff --git a/modules/simpletest/tests/form.test b/modules/simpletest/tests/form.test
index 4683fb8d4ebdf75ba585a5a6022f253c183b2470..76a9589bf4cfa66e20b48dc82e9ccb5caea7eb6a 100644
--- a/modules/simpletest/tests/form.test
+++ b/modules/simpletest/tests/form.test
@@ -946,7 +946,7 @@ class FormsArbitraryRebuildTestCase extends DrupalWebTestCase {
     field_create_field($field);
 
     $instance = array(
-      'object_type' => 'node',
+      'entity_type' => 'node',
       'field_name' => 'test_multiple',
       'bundle' => 'page',
       'label' => 'Test a multiple valued field',
diff --git a/modules/system/system.api.php b/modules/system/system.api.php
index d248e3be9ee05018f1349bbe5292bed9bce68717..3bfa0e4b650458bf7e3d91c4bc0fa74e5d5a2dfa 100644
--- a/modules/system/system.api.php
+++ b/modules/system/system.api.php
@@ -70,7 +70,7 @@ function hook_hook_info() {
  *     uri elements of the entity, e.g. 'path' and 'options'. The actual entity
  *     uri can be constructed by passing these elements to url().
  *   - fieldable: Set to TRUE if you want your entity type to be fieldable.
- *   - object keys: An array describing how the Field API can extract the
+ *   - entity keys: An array describing how the Field API can extract the
  *     information it needs from the objects of the type. Elements:
  *     - id: The name of the property that contains the primary id of the
  *       object. Every object passed to the Field API must have this property
@@ -97,7 +97,7 @@ function hook_hook_info() {
  *     field_attach_load().
  *   - bundles: An array describing all bundles for this object type.
  *     Keys are bundles machine names, as found in the objects' 'bundle'
- *     property (defined in the 'object keys' entry above). Elements:
+ *     property (defined in the 'entity keys' entry above). Elements:
  *     - label: The human-readable name of the bundle.
  *     - admin: An array of information that allows Field UI pages to attach
  *       themselves to the existing administration pages for the bundle.
@@ -131,7 +131,7 @@ function hook_entity_info() {
       'revision table' => 'node_revision',
       'path callback' => 'node_path',
       'fieldable' => TRUE,
-      'object keys' => array(
+      'entity keys' => array(
         'id' => 'nid',
         'revision' => 'vid',
         'bundle' => 'type',
@@ -1425,7 +1425,7 @@ function hook_mail($key, &$message, $params) {
     '%username' => format_username($account),
   );
   if ($context['hook'] == 'taxonomy') {
-    $entity = $params['object'];
+    $entity = $params['entity'];
     $vocabulary = taxonomy_vocabulary_load($entity->vid);
     $variables += array(
       '%term_name' => $entity->name,
diff --git a/modules/system/system.module b/modules/system/system.module
index aa7ff01dbd8be850300d7d3ba70b8171d1fa413e..8f5b92e4ae62466fc00a1575986004dc550508e9 100644
--- a/modules/system/system.module
+++ b/modules/system/system.module
@@ -47,14 +47,14 @@
 define('DRUPAL_REQUIRED', 2);
 
 /**
- * Return only visible regions. 
+ * Return only visible regions.
  *
  * @see system_region_list()
  */
 define('REGIONS_VISIBLE', 'visible');
 
 /**
- * Return all regions. 
+ * Return all regions.
  *
  * @see system_region_list()
  */
@@ -261,7 +261,7 @@ function system_entity_info() {
     'file' => array(
       'label' => t('File'),
       'base table' => 'file',
-      'object keys' => array(
+      'entity keys' => array(
         'id' => 'fid',
       ),
       'static cache' => FALSE,
diff --git a/modules/taxonomy/taxonomy.install b/modules/taxonomy/taxonomy.install
index b47689ed52c0e5f4ac4ef260d21276060354deb5..96499e90907efd98ebd9cdfe3eb434ea4f9f274e 100644
--- a/modules/taxonomy/taxonomy.install
+++ b/modules/taxonomy/taxonomy.install
@@ -365,7 +365,7 @@ function taxonomy_update_7004() {
         'label' => $vocabulary->name,
         'field_name' => $field_name,
         'bundle' => $bundle,
-        'object_type' => 'node',
+        'entity_type' => 'node',
         'description' => $vocabulary->help,
         'widget' => array(
           'type' => $vocabulary->tags ? 'taxonomy_autocomplete' : 'select',
diff --git a/modules/taxonomy/taxonomy.module b/modules/taxonomy/taxonomy.module
index bee1627fffae3b750d899a540edc5ed5bcddcf25..9f6e54dc2caa7cb6ff550ea8ff1247f59db3690c 100644
--- a/modules/taxonomy/taxonomy.module
+++ b/modules/taxonomy/taxonomy.module
@@ -89,7 +89,7 @@ function taxonomy_entity_info() {
       'base table' => 'taxonomy_term_data',
       'uri callback' => 'taxonomy_term_uri',
       'fieldable' => TRUE,
-      'object keys' => array(
+      'entity keys' => array(
         'id' => 'tid',
         'bundle' => 'vocabulary_machine_name',
       ),
@@ -120,7 +120,7 @@ function taxonomy_entity_info() {
     'label' => t('Taxonomy vocabulary'),
     'controller class' => 'TaxonomyVocabularyController',
     'base table' => 'taxonomy_vocabulary',
-    'object keys' => array(
+    'entity keys' => array(
       'id' => 'vid',
     ),
     'fieldable' => FALSE,
diff --git a/modules/taxonomy/taxonomy.test b/modules/taxonomy/taxonomy.test
index 4078d15f3e8d404241815c977b0068279aeb12ac..aa8b98335359dbb52daac665733472a12be0c7d9 100644
--- a/modules/taxonomy/taxonomy.test
+++ b/modules/taxonomy/taxonomy.test
@@ -342,7 +342,7 @@ class TaxonomyTermTestCase extends TaxonomyWebTestCase {
     $this->instance = array(
       'field_name' => 'taxonomy_' . $this->vocabulary->machine_name,
       'bundle' => 'article',
-      'object_type' => 'node',
+      'entity_type' => 'node',
       'widget' => array(
         'type' => 'options_select',
       ),
@@ -761,7 +761,7 @@ class TaxonomyTermFieldTestCase extends TaxonomyWebTestCase {
     field_create_field($this->field);
     $this->instance = array(
       'field_name' => $this->field_name,
-      'object_type' => 'test_entity',
+      'entity_type' => 'test_entity',
       'bundle' => 'test_bundle',
       'widget' => array(
         'type' => 'options_select',
@@ -821,7 +821,7 @@ class TaxonomyTermFieldTestCase extends TaxonomyWebTestCase {
     field_create_field($this->field);
     $this->instance = array(
       'field_name' => $this->field_name,
-      'object_type' => 'test_entity',
+      'entity_type' => 'test_entity',
       'bundle' => 'test_bundle',
       'label' => $this->randomName() . '_label',
       'widget' => array(
@@ -894,7 +894,7 @@ class TaxonomyTokenReplaceTestCase extends TaxonomyWebTestCase {
     $this->instance = array(
       'field_name' => 'taxonomy_' . $this->vocabulary->machine_name,
       'bundle' => 'article',
-      'object_type' => 'node',
+      'entity_type' => 'node',
       'widget' => array(
         'type' => 'options_select',
       ),
diff --git a/modules/user/user.module b/modules/user/user.module
index 59badb5203ea08eff38196c7157c4a113ca97a86..772ddf5bb17b86bf7454aaef4d3e72907d949757 100644
--- a/modules/user/user.module
+++ b/modules/user/user.module
@@ -131,7 +131,7 @@ function user_entity_info() {
       'base table' => 'users',
       'uri callback' => 'user_uri',
       'fieldable' => TRUE,
-      'object keys' => array(
+      'entity keys' => array(
         'id' => 'uid',
       ),
       'bundles' => array(
diff --git a/profiles/standard/standard.install b/profiles/standard/standard.install
index ff10e0b9c28f9f43de634dca3578da61fcee3a4a..75db91ec23534802d13b42fc2c777a3e0679795d 100644
--- a/profiles/standard/standard.install
+++ b/profiles/standard/standard.install
@@ -301,7 +301,7 @@ function standard_install() {
 
   $instance = array(
     'field_name' => 'taxonomy_' . $vocabulary->machine_name,
-    'object_type' => 'node',
+    'entity_type' => 'node',
     'label' => $vocabulary->name,
     'bundle' => 'article',
     'description' => $vocabulary->help,
@@ -340,7 +340,7 @@ function standard_install() {
   // See http://api.drupal.org/api/function/field_create_instance/7
   $instance = array(
     'field_name' => 'field_image',
-    'object_type' => 'node',
+    'entity_type' => 'node',
     'label' => 'Image',
     'bundle' => 'article',
     'description' => 'Upload an image to go with this article.',