diff --git a/wp-admin/includes/class-wp-upgrader.php b/wp-admin/includes/class-wp-upgrader.php
index d45c72f8a4..cf33046f6e 100644
--- a/wp-admin/includes/class-wp-upgrader.php
+++ b/wp-admin/includes/class-wp-upgrader.php
@@ -348,7 +348,7 @@ class WP_Upgrader {
 	 *
 	 * @param  array  $nested_files  Array of files as returned by WP_Filesystem::dirlist()
 	 * @param  string $path          Relative path to prepend to child nodes. Optional.
-	 * @return array $files A flattened array of the $nested_files specified.
+	 * @return array A flattened array of the $nested_files specified.
 	 */
 	protected function flatten_dirlist( $nested_files, $path = '' ) {
 		$files = array();
diff --git a/wp-admin/includes/deprecated.php b/wp-admin/includes/deprecated.php
index ec5c7f7c2a..5df3b87403 100644
--- a/wp-admin/includes/deprecated.php
+++ b/wp-admin/includes/deprecated.php
@@ -1001,7 +1001,7 @@ function add_contextual_help( $screen, $help ) {
  * @deprecated 3.4.0 Use wp_get_themes()
  * @see wp_get_themes()
  *
- * @return array $themes Array of allowed themes.
+ * @return WP_Theme[] Array of WP_Theme objects keyed by their name.
  */
 function get_allowed_themes() {
 	_deprecated_function( __FUNCTION__, '3.4.0', "wp_get_themes( array( 'allowed' => true ) )" );
diff --git a/wp-admin/includes/image.php b/wp-admin/includes/image.php
index a0f78ed3db..a22bf124e9 100644
--- a/wp-admin/includes/image.php
+++ b/wp-admin/includes/image.php
@@ -244,7 +244,12 @@ function wp_create_image_subsizes( $file, $attachment_id ) {
 	 * @since 5.3.0
 	 *
 	 * @param int    $threshold     The threshold value in pixels. Default 2560.
-	 * @param array  $imagesize     Indexed array of the image width and height (in that order).
+	 * @param array  $imagesize     {
+	 *     Indexed array of the image width and height in pixels.
+	 *
+	 *     @type int $0 The image width.
+	 *     @type int $0 The image height.
+	 * }
 	 * @param string $file          Full path to the uploaded image file.
 	 * @param int    $attachment_id Attachment post ID.
 	 */
@@ -535,8 +540,8 @@ function wp_generate_attachment_metadata( $attachment_id, $file ) {
 		 *
 		 * @since 4.7.0
 		 *
-		 * @param array $fallback_sizes An array of image size names.
-		 * @param array $metadata       Current attachment metadata.
+		 * @param string[] $fallback_sizes An array of image size names.
+		 * @param array    $metadata       Current attachment metadata.
 		 */
 		$fallback_sizes = apply_filters( 'fallback_intermediate_image_sizes', $fallback_sizes, $metadata );
 
diff --git a/wp-admin/includes/nav-menu.php b/wp-admin/includes/nav-menu.php
index cb0bbe6449..d10ce01594 100644
--- a/wp-admin/includes/nav-menu.php
+++ b/wp-admin/includes/nav-menu.php
@@ -1126,7 +1126,7 @@ function _wp_delete_orphaned_draft_menu_items() {
  *
  * @param int|string $nav_menu_selected_id (id, slug, or name ) of the currently-selected menu
  * @param string $nav_menu_selected_title Title of the currently-selected menu
- * @return array $messages The menu updated message
+ * @return array The menu updated message
  */
 function wp_nav_menu_update_menu_items( $nav_menu_selected_id, $nav_menu_selected_title ) {
 	$unsorted_menu_items = wp_get_nav_menu_items(
diff --git a/wp-includes/class-wp-customize-widgets.php b/wp-includes/class-wp-customize-widgets.php
index 1a0ae316e9..297342238a 100644
--- a/wp-includes/class-wp-customize-widgets.php
+++ b/wp-includes/class-wp-customize-widgets.php
@@ -1104,7 +1104,7 @@ final class WP_Customize_Widgets {
 	 * @since 4.2.0
 	 *
 	 * @param  array $nonces Array of nonces.
-	 * @return array $nonces Array of nonces.
+	 * @return array Array of nonces.
 	 */
 	public function refresh_nonces( $nonces ) {
 		$nonces['update-widget'] = wp_create_nonce( 'update-widget' );
diff --git a/wp-includes/comment.php b/wp-includes/comment.php
index 7837ce94a9..78413c3c3e 100644
--- a/wp-includes/comment.php
+++ b/wp-includes/comment.php
@@ -3393,7 +3393,7 @@ function wp_handle_comment_submission( $comment_data ) {
  * @since 4.9.6
  *
  * @param array $exporters An array of personal data exporters.
- * @return array $exporters An array of personal data exporters.
+ * @return array An array of personal data exporters.
  */
 function wp_register_comment_personal_data_exporter( $exporters ) {
 	$exporters['wordpress-comments'] = array(
@@ -3411,7 +3411,7 @@ function wp_register_comment_personal_data_exporter( $exporters ) {
  *
  * @param string $email_address The comment author email address.
  * @param int    $page          Comment page.
- * @return array $return An array of personal data.
+ * @return array An array of personal data.
  */
 function wp_comments_personal_data_exporter( $email_address, $page = 1 ) {
 	// Limit us to 500 comments at a time to avoid timing out.
@@ -3503,7 +3503,7 @@ function wp_comments_personal_data_exporter( $email_address, $page = 1 ) {
  * @since 4.9.6
  *
  * @param  array $erasers An array of personal data erasers.
- * @return array $erasers An array of personal data erasers.
+ * @return array An array of personal data erasers.
  */
 function wp_register_comment_personal_data_eraser( $erasers ) {
 	$erasers['wordpress-comments'] = array(
diff --git a/wp-includes/embed.php b/wp-includes/embed.php
index 06092b4388..8472ca7368 100644
--- a/wp-includes/embed.php
+++ b/wp-includes/embed.php
@@ -76,8 +76,12 @@ function wp_embed_defaults( $url = '' ) {
 	 *
 	 * @since 2.9.0
 	 *
-	 * @param array  $size An array of embed width and height values
-	 *                     in pixels (in that order).
+	 * @param array  $size {
+	 *     Indexed array of the embed width and height in pixels.
+	 *
+	 *     @type int $0 The embed width.
+	 *     @type int $0 The embed height.
+	 * }
 	 * @param string $url  The URL that should be embedded.
 	 */
 	return apply_filters( 'embed_defaults', compact( 'width', 'height' ), $url );
diff --git a/wp-includes/functions.php b/wp-includes/functions.php
index 47ee58a3ad..995268fd41 100644
--- a/wp-includes/functions.php
+++ b/wp-includes/functions.php
@@ -6395,7 +6395,7 @@ function wp_auth_check_html() {
  * @global int $login_grace_period
  *
  * @param array $response  The Heartbeat response.
- * @return array $response The Heartbeat response with 'wp-auth-check' value set.
+ * @return array The Heartbeat response with 'wp-auth-check' value set.
  */
 function wp_auth_check( $response ) {
 	$response['wp-auth-check'] = is_user_logged_in() && empty( $GLOBALS['login_grace_period'] );
diff --git a/wp-includes/media.php b/wp-includes/media.php
index 90727be7a9..4ead3ab8cd 100644
--- a/wp-includes/media.php
+++ b/wp-includes/media.php
@@ -1107,8 +1107,7 @@ function _wp_get_attachment_relative_path( $file ) {
  *
  * @param string $size_name  Image size. Accepts any valid image size name ('thumbnail', 'medium', etc.).
  * @param array  $image_meta The image meta data.
- * @return array|bool Array of width and height values in pixels (in that order)
- *                    or false if the size doesn't exist.
+ * @return array|bool The image meta data as returned by `wp_get_attachment_metadata()`.
  */
 function _wp_get_image_size_from_meta( $size_name, $image_meta ) {
 	if ( $size_name === 'full' ) {
diff --git a/wp-includes/ms-functions.php b/wp-includes/ms-functions.php
index 99a5533dc2..a87f44175a 100644
--- a/wp-includes/ms-functions.php
+++ b/wp-includes/ms-functions.php
@@ -2577,7 +2577,7 @@ function wp_is_large_network( $using = 'sites', $network_id = null ) {
  *
  * @since 4.4.0
  *
- * @return array $names Array of reserved subdirectory names.
+ * @return array Array of reserved subdirectory names.
  */
 function get_subdirectory_reserved_names() {
 	$names = array(
diff --git a/wp-includes/rest-api.php b/wp-includes/rest-api.php
index 417b8ddada..ae4f609ac0 100644
--- a/wp-includes/rest-api.php
+++ b/wp-includes/rest-api.php
@@ -1165,7 +1165,7 @@ function rest_is_boolean( $maybe_bool ) {
  *
  * @param mixed $id_or_email The Gravatar to retrieve a URL for. Accepts a user_id, gravatar md5 hash,
  *                           user email, WP_User object, WP_Post object, or WP_Comment object.
- * @return array $urls Gravatar url for each size.
+ * @return array Gravatar url for each size.
  */
 function rest_get_avatar_urls( $id_or_email ) {
 	$avatar_sizes = rest_get_avatar_sizes();
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 281173c407..e07496a007 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.4-alpha-46643';
+$wp_version = '5.4-alpha-46644';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.