diff -u b/core/modules/media/src/MediaAccessControlHandler.php b/core/modules/media/src/MediaAccessControlHandler.php
--- b/core/modules/media/src/MediaAccessControlHandler.php
+++ b/core/modules/media/src/MediaAccessControlHandler.php
@@ -8,7 +8,7 @@
 use Drupal\Core\Session\AccountInterface;
 
 /**
- * Defines an access control handler for the media item.
+ * Defines an access control handler for media items.
  */
 class MediaAccessControlHandler extends EntityAccessControlHandler {
 
diff -u b/core/modules/media/tests/src/Functional/MediaCacheTagsTest.php b/core/modules/media/tests/src/Functional/MediaCacheTagsTest.php
--- b/core/modules/media/tests/src/Functional/MediaCacheTagsTest.php
+++ b/core/modules/media/tests/src/Functional/MediaCacheTagsTest.php
@@ -7,7 +7,7 @@
 use Drupal\system\Tests\Entity\EntityWithUriCacheTagsTestBase;
 
 /**
- * Tests the media item's cache tags.
+ * Tests the media items cache tags.
  *
  * @group media
  */
diff -u b/core/modules/media/tests/src/Functional/MediaFunctionalTestTrait.php b/core/modules/media/tests/src/Functional/MediaFunctionalTestTrait.php
--- b/core/modules/media/tests/src/Functional/MediaFunctionalTestTrait.php
+++ b/core/modules/media/tests/src/Functional/MediaFunctionalTestTrait.php
@@ -13,7 +13,7 @@
    * @var array
    */
   protected static $adminUserPermissions = [
-    // Media item permissions.
+    // Media module permissions.
     'administer media',
     'administer media fields',
     'administer media form display',
diff -u b/core/modules/media/tests/src/Kernel/MediaLinkRelationsTest.php b/core/modules/media/tests/src/Kernel/MediaLinkRelationsTest.php
--- b/core/modules/media/tests/src/Kernel/MediaLinkRelationsTest.php
+++ b/core/modules/media/tests/src/Kernel/MediaLinkRelationsTest.php
@@ -5,7 +5,7 @@
 use Drupal\media\Entity\Media;
 
 /**
- * Tests link relationships for the media item.
+ * Tests link relationships for media items.
  *
  * @group media
  */