diff --git a/src/wp-admin/edit-form-blocks.php b/src/wp-admin/edit-form-blocks.php
index eca1d9954e..8f323501a0 100644
--- a/src/wp-admin/edit-form-blocks.php
+++ b/src/wp-admin/edit-form-blocks.php
@@ -59,8 +59,8 @@ $preload_paths = array(
  *
  * @since 5.0.0
  *
- * @param array  $preload_paths Array of paths to preload.
- * @param object $post          The post resource data.
+ * @param string[] $preload_paths Array of paths to preload.
+ * @param WP_Post  $post          Post being edited.
  */
 $preload_paths = apply_filters( 'block_editor_preload_paths', $preload_paths, $post );
 
diff --git a/src/wp-admin/includes/class-wp-ms-users-list-table.php b/src/wp-admin/includes/class-wp-ms-users-list-table.php
index 1fd437ca2f..707b9974f9 100644
--- a/src/wp-admin/includes/class-wp-ms-users-list-table.php
+++ b/src/wp-admin/includes/class-wp-ms-users-list-table.php
@@ -378,10 +378,10 @@ class WP_MS_Users_List_Table extends WP_List_Table {
 			 *
 			 * @since 5.2.0
 			 *
-			 * @param array  $site_classes Class used within the span tag. Default "site-#" with the site's network ID.
-			 * @param int    $site_id      Site ID.
-			 * @param int    $network_id   Network ID.
-			 * @param object $user         WP_User object.
+			 * @param string[] $site_classes Array of class names used within the span tag. Default "site-#" with the site's network ID.
+			 * @param int      $site_id      Site ID.
+			 * @param int      $network_id   Network ID.
+			 * @param WP_User  $user         WP_User object.
 			 */
 			$site_classes = apply_filters( 'ms_user_list_site_class', $site_classes, $val->userblog_id, $val->site_id, $user );
 			if ( is_array( $site_classes ) && ! empty( $site_classes ) ) {
diff --git a/src/wp-admin/includes/class-wp-posts-list-table.php b/src/wp-admin/includes/class-wp-posts-list-table.php
index 564e59264f..ee7750c12a 100644
--- a/src/wp-admin/includes/class-wp-posts-list-table.php
+++ b/src/wp-admin/includes/class-wp-posts-list-table.php
@@ -1208,9 +1208,9 @@ class WP_Posts_List_Table extends WP_List_Table {
 				 *
 				 * @since 5.2.0
 				 *
-				 * @param array  $term_links List of links to edit.php, filtered by the taxonomy term.
-				 * @param string $taxonomy   Taxonomy name.
-				 * @param array  $terms      Array of terms appearing in the post row.
+				 * @param string[]  $term_links Array of term editing links.
+				 * @param string    $taxonomy   Taxonomy name.
+				 * @param WP_Term[] $terms      Array of term objects appearing in the post row.
 				 */
 				$term_links = apply_filters( 'post_column_taxonomy_links', $term_links, $taxonomy, $terms );
 
diff --git a/src/wp-admin/includes/class-wp-privacy-policy-content.php b/src/wp-admin/includes/class-wp-privacy-policy-content.php
index 030efefe1b..65f27470a3 100644
--- a/src/wp-admin/includes/class-wp-privacy-policy-content.php
+++ b/src/wp-admin/includes/class-wp-privacy-policy-content.php
@@ -705,10 +705,10 @@ final class WP_Privacy_Policy_Content {
 		 * @since 4.9.6
 		 * @since 5.0.0 Added the `$strings`, `$description`, and `$blocks` parameters.
 		 *
-		 * @param string $content     The default policy content.
-		 * @param array  $strings     An array of privacy policy content strings.
-		 * @param bool   $description Whether policy descriptions should be included.
-		 * @param bool   $blocks      Whether the content should be formatted for the block editor.
+		 * @param string   $content     The default policy content.
+		 * @param string[] $strings     An array of privacy policy content strings.
+		 * @param bool     $description Whether policy descriptions should be included.
+		 * @param bool     $blocks      Whether the content should be formatted for the block editor.
 		 */
 		return apply_filters( 'wp_get_default_privacy_policy_content', $content, $strings, $description, $blocks );
 	}
diff --git a/src/wp-admin/includes/class-wp-upgrader.php b/src/wp-admin/includes/class-wp-upgrader.php
index cc7c05bcb2..d45c72f8a4 100644
--- a/src/wp-admin/includes/class-wp-upgrader.php
+++ b/src/wp-admin/includes/class-wp-upgrader.php
@@ -175,11 +175,11 @@ class WP_Upgrader {
 	 *
 	 * @global WP_Filesystem_Base $wp_filesystem WordPress filesystem subclass.
 	 *
-	 * @param array $directories                  Optional. A list of directories. If any of these do
-	 *                                            not exist, a WP_Error object will be returned.
-	 *                                            Default empty array.
-	 * @param bool  $allow_relaxed_file_ownership Whether to allow relaxed file ownership.
-	 *                                            Default false.
+	 * @param string[] $directories                  Optional. Array of directories. If any of these do
+	 *                                               not exist, a WP_Error object will be returned.
+	 *                                               Default empty array.
+	 * @param bool     $allow_relaxed_file_ownership Whether to allow relaxed file ownership.
+	 *                                               Default false.
 	 * @return bool|WP_Error True if able to connect, false or a WP_Error otherwise.
 	 */
 	public function fs_connect( $directories = array(), $allow_relaxed_file_ownership = false ) {
diff --git a/src/wp-admin/includes/dashboard.php b/src/wp-admin/includes/dashboard.php
index bd64d825fe..5b3883fe59 100644
--- a/src/wp-admin/includes/dashboard.php
+++ b/src/wp-admin/includes/dashboard.php
@@ -1731,8 +1731,8 @@ function wp_dashboard_php_nag() {
  *
  * @since 5.1.0
  *
- * @param array $classes Metabox classes.
- * @return array Modified metabox classes.
+ * @param string[] $classes Array of metabox classes.
+ * @return string[] Modified array of metabox classes.
  */
 function dashboard_php_nag_class( $classes ) {
 	$response = wp_check_php_version();
diff --git a/src/wp-admin/includes/file.php b/src/wp-admin/includes/file.php
index 2e4493e8d8..110382602a 100644
--- a/src/wp-admin/includes/file.php
+++ b/src/wp-admin/includes/file.php
@@ -1061,11 +1061,11 @@ function download_url( $url, $timeout = 300, $signature_verification = false ) {
 	// If the caller expects signature verification to occur, check to see if this URL supports it.
 	if ( $signature_verification ) {
 		/**
-		 * Filters the list of hosts which should have Signature Verification attempteds on.
+		 * Filters the list of hosts which should have Signature Verification attempted on.
 		 *
 		 * @since 5.2.0
 		 *
-		 * @param array List of hostnames.
+		 * @param string[] $hostnames List of hostnames.
 		 */
 		$signed_hostnames       = apply_filters( 'wp_signature_hosts', array( 'wordpress.org', 'downloads.wordpress.org', 's.w.org' ) );
 		$signature_verification = in_array( parse_url( $url, PHP_URL_HOST ), $signed_hostnames, true );
@@ -1341,7 +1341,7 @@ function verify_file_signature( $filename, $signatures, $filename_for_errors = f
  *
  * @since 5.2.0
  *
- * @return array List of base64-encoded Signing keys.
+ * @return string[] Array of base64-encoded signing keys.
  */
 function wp_trusted_keys() {
 	$trusted_keys = array();
@@ -1354,11 +1354,11 @@ function wp_trusted_keys() {
 	// TODO: Add key #2 with longer expiration.
 
 	/**
-	 * Filter the valid Signing keys used to verify the contents of files.
+	 * Filter the valid signing keys used to verify the contents of files.
 	 *
 	 * @since 5.2.0
 	 *
-	 * @param array $trusted_keys The trusted keys that may sign packages.
+	 * @param string[] $trusted_keys The trusted keys that may sign packages.
 	 */
 	return apply_filters( 'wp_trusted_keys', $trusted_keys );
 }
@@ -1449,9 +1449,9 @@ function unzip_file( $file, $to ) {
  *
  * @global WP_Filesystem_Base $wp_filesystem WordPress filesystem subclass.
  *
- * @param string $file       Full path and filename of ZIP archive.
- * @param string $to         Full path on the filesystem to extract archive to.
- * @param array $needed_dirs A partial list of required folders needed to be created.
+ * @param string   $file        Full path and filename of ZIP archive.
+ * @param string   $to          Full path on the filesystem to extract archive to.
+ * @param string[] $needed_dirs A partial list of required folders needed to be created.
  * @return true|WP_Error True on success, WP_Error on failure.
  */
 function _unzip_file_ziparchive( $file, $to, $needed_dirs = array() ) {
@@ -1580,9 +1580,9 @@ function _unzip_file_ziparchive( $file, $to, $needed_dirs = array() ) {
  *
  * @global WP_Filesystem_Base $wp_filesystem WordPress filesystem subclass.
  *
- * @param string $file       Full path and filename of ZIP archive.
- * @param string $to         Full path on the filesystem to extract archive to.
- * @param array $needed_dirs A partial list of required folders needed to be created.
+ * @param string   $file        Full path and filename of ZIP archive.
+ * @param string   $to          Full path on the filesystem to extract archive to.
+ * @param string[] $needed_dirs A partial list of required folders needed to be created.
  * @return true|WP_Error True on success, WP_Error on failure.
  */
 function _unzip_file_pclzip( $file, $to, $needed_dirs = array() ) {
@@ -1691,9 +1691,9 @@ function _unzip_file_pclzip( $file, $to, $needed_dirs = array() ) {
  *
  * @global WP_Filesystem_Base $wp_filesystem WordPress filesystem subclass.
  *
- * @param string $from     Source directory.
- * @param string $to       Destination directory.
- * @param array $skip_list A list of files/folders to skip copying.
+ * @param string   $from      Source directory.
+ * @param string   $to        Destination directory.
+ * @param string[] $skip_list An array of files/folders to skip copying.
  * @return true|WP_Error True on success, WP_Error on failure.
  */
 function copy_dir( $from, $to, $skip_list = array() ) {
diff --git a/src/wp-admin/includes/list-table.php b/src/wp-admin/includes/list-table.php
index 1c48ba4187..07fcce6793 100644
--- a/src/wp-admin/includes/list-table.php
+++ b/src/wp-admin/includes/list-table.php
@@ -66,11 +66,13 @@ function _get_list_table( $class, $args = array() ) {
 /**
  * Register column headers for a particular screen.
  *
+ * @see get_column_headers(), print_column_headers(), get_hidden_columns()
+ *
  * @since 2.7.0
  *
- * @param string $screen The handle for the screen to add help to. This is usually the hook name returned by the add_*_page() functions.
- * @param array $columns An array of columns with column IDs as the keys and translated column names as the values
- * @see get_column_headers(), print_column_headers(), get_hidden_columns()
+ * @param string  $screen   The handle for the screen to add help to. This is usually the hook name returned by the
+ *                          add_*_page() functions.
+ * @param string[] $columns An array of columns with column IDs as the keys and translated column names as the values.
  */
 function register_column_headers( $screen, $columns ) {
 	new _WP_List_Table_Compat( $screen, $columns );
diff --git a/src/wp-admin/includes/media.php b/src/wp-admin/includes/media.php
index 16b2052a36..5ca4197f1b 100644
--- a/src/wp-admin/includes/media.php
+++ b/src/wp-admin/includes/media.php
@@ -11,7 +11,7 @@
  *
  * @since 2.5.0
  *
- * @return array default tabs
+ * @return string[] Default tabs.
  */
 function media_upload_tabs() {
 	$_default_tabs = array(
@@ -26,7 +26,7 @@ function media_upload_tabs() {
 	 *
 	 * @since 2.5.0
 	 *
-	 * @param array $_default_tabs An array of media tabs.
+	 * @param string[] $_default_tabs An array of media tabs.
 	 */
 	return apply_filters( 'media_upload_tabs', $_default_tabs );
 }
@@ -1128,8 +1128,8 @@ function image_size_input_fields( $post, $check = '' ) {
 	 *
 	 * @since 3.3.0
 	 *
-	 * @param array $size_names Array of image sizes and their names. Default values
-	 *                          include 'Thumbnail', 'Medium', 'Large', 'Full Size'.
+	 * @param string[] $size_names Array of image size labels keyed by their name. Default values
+	 *                             include 'Thumbnail', 'Medium', 'Large', and 'Full Size'.
 	 */
 	$size_names = apply_filters(
 		'image_size_names_choose',
diff --git a/src/wp-admin/includes/post.php b/src/wp-admin/includes/post.php
index b659254c1f..f2d85e969d 100644
--- a/src/wp-admin/includes/post.php
+++ b/src/wp-admin/includes/post.php
@@ -2191,7 +2191,7 @@ function get_block_categories( $post ) {
 	 *
 	 * @since 5.0.0
 	 *
-	 * @param array   $default_categories Array of block categories.
+	 * @param array[] $default_categories Array of block categories.
 	 * @param WP_Post $post               Post being loaded.
 	 */
 	return apply_filters( 'block_categories', $default_categories, $post );
diff --git a/src/wp-admin/includes/screen.php b/src/wp-admin/includes/screen.php
index 61c4b6abd8..40a1a26fe3 100644
--- a/src/wp-admin/includes/screen.php
+++ b/src/wp-admin/includes/screen.php
@@ -14,7 +14,7 @@
  * @staticvar array $column_headers
  *
  * @param string|WP_Screen $screen The screen you want the headers for
- * @return array Containing the headers in the format id => UI String
+ * @return string[] The column header labels keyed by column ID.
  */
 function get_column_headers( $screen ) {
 	if ( is_string( $screen ) ) {
@@ -24,7 +24,6 @@ function get_column_headers( $screen ) {
 	static $column_headers = array();
 
 	if ( ! isset( $column_headers[ $screen->id ] ) ) {
-
 		/**
 		 * Filters the column headers for a list table on a specific screen.
 		 *
@@ -35,7 +34,7 @@ function get_column_headers( $screen ) {
 		 *
 		 * @since 3.0.0
 		 *
-		 * @param array $columns An array of column headers. Default empty.
+		 * @param string[] $columns The column header labels keyed by column ID.
 		 */
 		$column_headers[ $screen->id ] = apply_filters( "manage_{$screen->id}_columns", array() );
 	}
diff --git a/src/wp-admin/includes/translation-install.php b/src/wp-admin/includes/translation-install.php
index db2229c667..f0de8fd6ee 100644
--- a/src/wp-admin/includes/translation-install.php
+++ b/src/wp-admin/includes/translation-install.php
@@ -154,7 +154,7 @@ function wp_get_available_translations() {
  *
  * @global string $wp_local_package
  *
- * @param array $languages Array of available languages (populated via the Translation API).
+ * @param array[] $languages Array of available languages (populated via the Translation API).
  */
 function wp_install_language_form( $languages ) {
 	global $wp_local_package;
diff --git a/src/wp-admin/includes/update-core.php b/src/wp-admin/includes/update-core.php
index e3ddec3db6..a42310b0ac 100644
--- a/src/wp-admin/includes/update-core.php
+++ b/src/wp-admin/includes/update-core.php
@@ -1311,10 +1311,10 @@ function update_core( $from, $to ) {
  *
  * @global WP_Filesystem_Base $wp_filesystem
  *
- * @param string $from     source directory
- * @param string $to       destination directory
- * @param array $skip_list a list of files/folders to skip copying
- * @return mixed WP_Error on failure, True on success.
+ * @param string   $from      Source directory.
+ * @param string   $to        Destination directory.
+ * @param string[] $skip_list Array of files/folders to skip copying.
+ * @return WP_Error|true WP_Error on failure, true on success.
  */
 function _copy_dir( $from, $to, $skip_list = array() ) {
 	global $wp_filesystem;
diff --git a/src/wp-includes/capabilities.php b/src/wp-includes/capabilities.php
index 53b2575f55..2ca595d357 100644
--- a/src/wp-includes/capabilities.php
+++ b/src/wp-includes/capabilities.php
@@ -807,9 +807,10 @@ function get_role( $role ) {
  *
  * @since 2.0.0
  *
- * @param string $role Role name.
+ * @param string $role         Role name.
  * @param string $display_name Display name for role.
- * @param array $capabilities List of capabilities, e.g. array( 'edit_posts' => true, 'delete_posts' => false );
+ * @param bool[] $capabilities List of capabilities keyed by the capability name,
+ *                             e.g. array( 'edit_posts' => true, 'delete_posts' => false ).
  * @return WP_Role|null WP_Role object if role is added, null if already exists.
  */
 function add_role( $role, $display_name, $capabilities = array() ) {
diff --git a/src/wp-includes/class-http.php b/src/wp-includes/class-http.php
index b78e890413..259b3747e3 100644
--- a/src/wp-includes/class-http.php
+++ b/src/wp-includes/class-http.php
@@ -521,10 +521,10 @@ class WP_Http {
 		 *
 		 * @since 3.7.0
 		 *
-		 * @param array  $transports Array of HTTP transports to check. Default array contains
-		 *                           'curl', and 'streams', in that order.
-		 * @param array  $args       HTTP request arguments.
-		 * @param string $url        The URL to request.
+		 * @param string[] $transports Array of HTTP transports to check. Default array contains
+		 *                             'curl' and 'streams', in that order.
+		 * @param array    $args       HTTP request arguments.
+		 * @param string   $url        The URL to request.
 		 */
 		$request_order = apply_filters( 'http_api_transports', $transports, $args, $url );
 
diff --git a/src/wp-includes/class-wp-http-encoding.php b/src/wp-includes/class-wp-http-encoding.php
index cac6734afa..4dbd59f7fd 100644
--- a/src/wp-includes/class-wp-http-encoding.php
+++ b/src/wp-includes/class-wp-http-encoding.php
@@ -174,10 +174,9 @@ class WP_Http_Encoding {
 		 *
 		 * @since 3.6.0
 		 *
-		 * @param array  $type Encoding types allowed. Accepts 'gzinflate',
-		 *                     'gzuncompress', 'gzdecode'.
-		 * @param string $url  URL of the HTTP request.
-		 * @param array  $args HTTP request arguments.
+		 * @param string[] $type Array of what encoding types to accept and their priority values.
+		 * @param string   $url  URL of the HTTP request.
+		 * @param array    $args HTTP request arguments.
 		 */
 		$type = apply_filters( 'wp_http_accept_encoding', $type, $url, $args );
 
diff --git a/src/wp-includes/class-wp-rewrite.php b/src/wp-includes/class-wp-rewrite.php
index bc96c083dc..3168322cc2 100644
--- a/src/wp-includes/class-wp-rewrite.php
+++ b/src/wp-includes/class-wp-rewrite.php
@@ -854,7 +854,7 @@ class WP_Rewrite {
 	 *                                    over and rewrite rules built for each in-turn. Default true.
 	 * @param bool   $endpoints           Optional. Whether endpoints should be applied to the generated rewrite rules.
 	 *                                    Default true.
-	 * @return array Rewrite rule list.
+	 * @return string[] Array of rewrite rules keyed by their regex pattern.
 	 */
 	public function generate_rewrite_rules( $permalink_structure, $ep_mask = EP_NONE, $paged = true, $feed = true, $forcomments = false, $walk_dirs = true, $endpoints = true ) {
 		// Build a regex to match the feed section of URLs, something like (feed|atom|rss|rss2)/?
@@ -1287,7 +1287,7 @@ class WP_Rewrite {
 		 *
 		 * @since 1.5.0
 		 *
-		 * @param array $post_rewrite The rewrite rules for posts.
+		 * @param string[] $post_rewrite Array of rewrite rules for posts, keyed by their regex pattern.
 		 */
 		$post_rewrite = apply_filters( 'post_rewrite_rules', $post_rewrite );
 
@@ -1301,7 +1301,7 @@ class WP_Rewrite {
 		 *
 		 * @since 1.5.0
 		 *
-		 * @param array $date_rewrite The rewrite rules for date archives.
+		 * @param string[] $date_rewrite Array of rewrite rules for date archives, keyed by their regex pattern.
 		 */
 		$date_rewrite = apply_filters( 'date_rewrite_rules', $date_rewrite );
 
@@ -1316,7 +1316,7 @@ class WP_Rewrite {
 		 *
 		 * @since 1.5.0
 		 *
-		 * @param array $root_rewrite The root-level rewrite rules.
+		 * @param string[] $root_rewrite Array of root-level rewrite rules, keyed by their regex pattern.
 		 */
 		$root_rewrite = apply_filters( 'root_rewrite_rules', $root_rewrite );
 
@@ -1330,7 +1330,7 @@ class WP_Rewrite {
 		 *
 		 * @since 1.5.0
 		 *
-		 * @param array $comments_rewrite The rewrite rules for the site-wide comments feeds.
+		 * @param string[] $comments_rewrite Array of rewrite rules for the site-wide comments feeds, keyed by their regex pattern.
 		 */
 		$comments_rewrite = apply_filters( 'comments_rewrite_rules', $comments_rewrite );
 
@@ -1346,7 +1346,7 @@ class WP_Rewrite {
 		 *
 		 * @since 1.5.0
 		 *
-		 * @param array $search_rewrite The rewrite rules for search queries.
+		 * @param string[] $search_rewrite Array of rewrite rules for search queries, keyed by their regex pattern.
 		 */
 		$search_rewrite = apply_filters( 'search_rewrite_rules', $search_rewrite );
 
@@ -1361,7 +1361,7 @@ class WP_Rewrite {
 		 *
 		 * @since 1.5.0
 		 *
-		 * @param array $author_rewrite The rewrite rules for author archives.
+		 * @param string[] $author_rewrite Array of rewrite rules for author archives, keyed by their regex pattern.
 		 */
 		$author_rewrite = apply_filters( 'author_rewrite_rules', $author_rewrite );
 
@@ -1373,7 +1373,7 @@ class WP_Rewrite {
 		 *
 		 * @since 1.5.0
 		 *
-		 * @param array $page_rewrite The rewrite rules for the "page" post type.
+		 * @param string[] $page_rewrite Array of rewrite rules for the "page" post type, keyed by their regex pattern.
 		 */
 		$page_rewrite = apply_filters( 'page_rewrite_rules', $page_rewrite );
 
@@ -1398,7 +1398,7 @@ class WP_Rewrite {
 			 *
 			 * @since 3.1.0
 			 *
-			 * @param array $rules The rewrite rules generated for the current permastruct.
+			 * @param string[] $rules Array of rewrite rules generated for the current permastruct, keyed by their regex pattern.
 			 */
 			$rules = apply_filters( "{$permastructname}_rewrite_rules", $rules );
 			if ( 'post_tag' == $permastructname ) {
@@ -1409,7 +1409,7 @@ class WP_Rewrite {
 				 * @since 2.3.0
 				 * @deprecated 3.1.0 Use 'post_tag_rewrite_rules' instead
 				 *
-				 * @param array $rules The rewrite rules generated for tags.
+				 * @param string[] $rules Array of rewrite rules generated for tags, keyed by their regex pattern.
 				 */
 				$rules = apply_filters( 'tag_rewrite_rules', $rules );
 			}
@@ -1438,7 +1438,7 @@ class WP_Rewrite {
 		 *
 		 * @since 1.5.0
 		 *
-		 * @param array $this->rules The compiled array of rewrite rules.
+		 * @param string[] $this->rules The compiled array of rewrite rules, keyed by their regex pattern.
 		 */
 		$this->rules = apply_filters( 'rewrite_rules_array', $this->rules );
 
diff --git a/src/wp-includes/class-wp-role.php b/src/wp-includes/class-wp-role.php
index fa8c9d03c6..d7f121ad48 100644
--- a/src/wp-includes/class-wp-role.php
+++ b/src/wp-includes/class-wp-role.php
@@ -37,8 +37,9 @@ class WP_Role {
 	 *
 	 * @since 2.0.0
 	 *
-	 * @param string $role Role name.
-	 * @param array $capabilities List of capabilities.
+	 * @param string $role         Role name.
+	 * @param bool[] $capabilities List of capabilities keyed by the capability name,
+	 *                             e.g. array( 'edit_posts' => true, 'delete_posts' => false ).
 	 */
 	public function __construct( $role, $capabilities ) {
 		$this->name         = $role;
diff --git a/src/wp-includes/class-wp-roles.php b/src/wp-includes/class-wp-roles.php
index 6e3004c37c..28c3895cc7 100644
--- a/src/wp-includes/class-wp-roles.php
+++ b/src/wp-includes/class-wp-roles.php
@@ -147,9 +147,10 @@ class WP_Roles {
 	 *
 	 * @since 2.0.0
 	 *
-	 * @param string $role Role name.
+	 * @param string $role         Role name.
 	 * @param string $display_name Role display name.
-	 * @param array $capabilities List of role capabilities in the above format.
+	 * @param bool[] $capabilities List of capabilities keyed by the capability name,
+	 *                             e.g. array( 'edit_posts' => true, 'delete_posts' => false ).
 	 * @return WP_Role|void WP_Role object, if role is added.
 	 */
 	public function add_role( $role, $display_name, $capabilities = array() ) {
diff --git a/src/wp-includes/class-wp-xmlrpc-server.php b/src/wp-includes/class-wp-xmlrpc-server.php
index abef0329ef..57d5937ffe 100644
--- a/src/wp-includes/class-wp-xmlrpc-server.php
+++ b/src/wp-includes/class-wp-xmlrpc-server.php
@@ -161,7 +161,7 @@ class wp_xmlrpc_server extends IXR_Server {
 		 *
 		 * @since 1.5.0
 		 *
-		 * @param array $methods An array of XML-RPC methods.
+		 * @param string[] $methods An array of XML-RPC methods, keyed by their methodName.
 		 */
 		$this->methods = apply_filters( 'xmlrpc_methods', $this->methods );
 	}
diff --git a/src/wp-includes/comment-template.php b/src/wp-includes/comment-template.php
index 9f945a9e3e..3ba95a20f4 100644
--- a/src/wp-includes/comment-template.php
+++ b/src/wp-includes/comment-template.php
@@ -1991,7 +1991,7 @@ function comment_form_title( $noreplytext = false, $replytext = false, $linktopa
  *     @type bool   $short_ping        Whether to output short pings. Default false.
  *     @type bool   $echo              Whether to echo the output or return it. Default true.
  * }
- * @param array $comments Optional. Array of WP_Comment objects.
+ * @param WP_Comment[] $comments Optional. Array of WP_Comment objects.
  */
 function wp_list_comments( $args = array(), $comments = null ) {
 	global $wp_query, $comment_alt, $comment_depth, $comment_thread_alt, $overridden_cpage, $in_comment_loop;
diff --git a/src/wp-includes/formatting.php b/src/wp-includes/formatting.php
index 4e83a037ed..fc90523122 100644
--- a/src/wp-includes/formatting.php
+++ b/src/wp-includes/formatting.php
@@ -230,7 +230,7 @@ function wptexturize( $text, $reset = false ) {
 	 *
 	 * @since 2.8.0
 	 *
-	 * @param array $default_no_texturize_tags An array of HTML element names.
+	 * @param string[] $default_no_texturize_tags An array of HTML element names.
 	 */
 	$no_texturize_tags = apply_filters( 'no_texturize_tags', $default_no_texturize_tags );
 	/**
@@ -238,7 +238,7 @@ function wptexturize( $text, $reset = false ) {
 	 *
 	 * @since 2.8.0
 	 *
-	 * @param array $default_no_texturize_shortcodes An array of shortcode names.
+	 * @param string[] $default_no_texturize_shortcodes An array of shortcode names.
 	 */
 	$no_texturize_shortcodes = apply_filters( 'no_texturize_shortcodes', $default_no_texturize_shortcodes );
 
@@ -397,9 +397,9 @@ function wptexturize_primes( $haystack, $needle, $prime, $open_quote, $close_quo
  * @since 2.9.0
  * @access private
  *
- * @param string $text Text to check. Must be a tag like `<html>` or `[shortcode]`.
- * @param array  $stack List of open tag elements.
- * @param array  $disabled_elements The tag names to match against. Spaces are not allowed in tag names.
+ * @param string   $text              Text to check. Must be a tag like `<html>` or `[shortcode]`.
+ * @param string[] $stack             Array of open tag elements.
+ * @param string[] $disabled_elements Array of tag names to match against. Spaces are not allowed in tag names.
  */
 function _wptexturize_pushpop_element( $text, &$stack, $disabled_elements ) {
 	// Is it an opening tag or closing tag?
@@ -736,10 +736,9 @@ function _get_wptexturize_split_regex( $shortcode_regex = '' ) {
  *
  * @access private
  * @ignore
- * @internal This function will be removed in 4.5.0 per Shortcode API Roadmap.
  * @since 4.4.0
  *
- * @param array $tagnames List of shortcodes to find.
+ * @param string[] $tagnames Array of shortcodes to find.
  * @return string The regular expression
  */
 function _get_wptexturize_shortcode_regex( $tagnames ) {
@@ -2000,8 +1999,8 @@ function remove_accents( $string ) {
  *
  * @since 2.1.0
  *
- * @param string $filename The filename to be sanitized
- * @return string The sanitized filename
+ * @param string $filename The filename to be sanitized.
+ * @return string The sanitized filename.
  */
 function sanitize_file_name( $filename ) {
 	$filename_raw  = $filename;
@@ -2011,8 +2010,8 @@ function sanitize_file_name( $filename ) {
 	 *
 	 * @since 2.8.0
 	 *
-	 * @param array  $special_chars Characters to remove.
-	 * @param string $filename_raw  Filename as it was passed into sanitize_file_name().
+	 * @param string[] $special_chars Array of characters to remove.
+	 * @param string   $filename_raw  The original filename to be sanitized.
 	 */
 	$special_chars = apply_filters( 'sanitize_file_name_chars', $special_chars, $filename_raw );
 	$filename      = preg_replace( "#\x{00a0}#siu", ' ', $filename );
@@ -4268,10 +4267,10 @@ function esc_sql( $data ) {
  *
  * @since 2.8.0
  *
- * @param string $url       The URL to be cleaned.
- * @param array  $protocols Optional. An array of acceptable protocols.
- *                          Defaults to return value of wp_allowed_protocols()
- * @param string $_context  Private. Use esc_url_raw() for database usage.
+ * @param string   $url       The URL to be cleaned.
+ * @param string[] $protocols Optional. An array of acceptable protocols.
+ *                            Defaults to return value of wp_allowed_protocols()
+ * @param string   $_context  Private. Use esc_url_raw() for database usage.
  * @return string The cleaned $url after the {@see 'clean_url'} filter is applied.
  */
 function esc_url( $url, $protocols = null, $_context = 'display' ) {
@@ -4376,8 +4375,8 @@ function esc_url( $url, $protocols = null, $_context = 'display' ) {
  *
  * @since 2.8.0
  *
- * @param string $url       The URL to be cleaned.
- * @param array  $protocols An array of acceptable protocols.
+ * @param string   $url       The URL to be cleaned.
+ * @param string[] $protocols An array of acceptable protocols.
  * @return string The cleaned URL.
  */
 function esc_url_raw( $url, $protocols = null ) {
@@ -5120,9 +5119,9 @@ function _links_add_base( $m ) {
  *
  * @global string $_links_add_target
  *
- * @param string $content String to search for links in.
- * @param string $target  The Target to add to the links.
- * @param array  $tags    An array of tags to apply to.
+ * @param string   $content String to search for links in.
+ * @param string   $target  The Target to add to the links.
+ * @param string[] $tags    An array of tags to apply to.
  * @return string The processed content.
  */
 function links_add_target( $content, $target = '_blank', $tags = array( 'a' ) ) {
diff --git a/src/wp-includes/functions.php b/src/wp-includes/functions.php
index 1c185516a1..06b5b1ebf6 100644
--- a/src/wp-includes/functions.php
+++ b/src/wp-includes/functions.php
@@ -862,8 +862,8 @@ function do_enclose( $content = null, $post ) {
 	 *
 	 * @since 4.4.0
 	 *
-	 * @param array $post_links An array of enclosure links.
-	 * @param int   $post_ID    Post ID.
+	 * @param string[] $post_links An array of enclosure links.
+	 * @param int      $post_ID    Post ID.
 	 */
 	$post_links = apply_filters( 'enclosure_links', $post_links, $post->ID );
 
@@ -1147,7 +1147,7 @@ function remove_query_arg( $key, $query = false ) {
  *
  * @since 4.4.0
  *
- * @return array An array of parameters to remove from the URL.
+ * @return string[] An array of parameters to remove from the URL.
  */
 function wp_removable_query_args() {
 	$removable_query_args = array(
@@ -1181,7 +1181,7 @@ function wp_removable_query_args() {
 	 *
 	 * @since 4.2.0
 	 *
-	 * @param array $removable_query_args An array of query variables to remove from a URL.
+	 * @param string[] $removable_query_args An array of query variables to remove from a URL.
 	 */
 	return apply_filters( 'removable_query_args', $removable_query_args );
 }
@@ -2613,9 +2613,14 @@ function wp_ext2type( $ext ) {
  *
  * @since 2.0.4
  *
- * @param string $filename File name or path.
- * @param array  $mimes    Optional. Key is the file extension with value as the mime type.
- * @return array Values with extension first and mime type.
+ * @param string   $filename File name or path.
+ * @param string[] $mimes    Optional. Array of mime types keyed by their file extension regex.
+ * @return array {
+ *     Values with extension first and mime type.
+ *
+ *     @type string $0 File extension.
+ *     @type string $1 File mime type.
+ * }
  */
 function wp_check_filetype( $filename, $mimes = null ) {
 	if ( empty( $mimes ) ) {
@@ -2648,10 +2653,10 @@ function wp_check_filetype( $filename, $mimes = null ) {
  *
  * @since 3.0.0
  *
- * @param string $file     Full path to the file.
- * @param string $filename The name of the file (may differ from $file due to $file being
- *                         in a tmp directory).
- * @param array   $mimes   Optional. Key is the file extension with value as the mime type.
+ * @param string   $file     Full path to the file.
+ * @param string   $filename The name of the file (may differ from $file due to $file being
+ *                           in a tmp directory).
+ * @param string[] $mimes    Optional. Array of mime types keyed by their file extension regex.
  * @return array Values for the extension, MIME, and either a corrected filename or false
  *               if original $filename is valid.
  */
@@ -2814,7 +2819,7 @@ function wp_check_filetype_and_ext( $file, $filename, $mimes = null ) {
 	 * @param string      $file                      Full path to the file.
 	 * @param string      $filename                  The name of the file (may differ from $file due to
 	 *                                               $file being in a tmp directory).
-	 * @param array       $mimes                     Key is the file extension with value as the mime type.
+	 * @param string[]    $mimes                     Array of mime types keyed by their file extension regex.
 	 * @param string|bool $real_mime                 The actual mime type or false if the type cannot be determined.
 	 */
 	return apply_filters( 'wp_check_filetype_and_ext', compact( 'ext', 'type', 'proper_filename' ), $file, $filename, $mimes, $real_mime );
@@ -2861,7 +2866,7 @@ function wp_get_image_mime( $file ) {
  * @since 4.9.2 Support was added for Flac (.flac) files.
  * @since 4.9.6 Support was added for AAC (.aac) files.
  *
- * @return array Array of mime types keyed by the file extension regex corresponding to those types.
+ * @return string[] Array of mime types keyed by the file extension regex corresponding to those types.
  */
 function wp_get_mime_types() {
 	/**
@@ -2872,7 +2877,7 @@ function wp_get_mime_types() {
 	 *
 	 * @since 3.5.0
 	 *
-	 * @param array $wp_get_mime_types Mime types keyed by the file extension regex
+	 * @param string[] $wp_get_mime_types Mime types keyed by the file extension regex
 	 *                                 corresponding to those types.
 	 */
 	return apply_filters(
@@ -3024,8 +3029,8 @@ function wp_get_ext_types() {
  * @since 2.8.6
  *
  * @param int|WP_User $user Optional. User to check. Defaults to current user.
- * @return array Array of mime types keyed by the file extension regex corresponding
- *               to those types.
+ * @return string[] Array of mime types keyed by the file extension regex corresponding
+ *                  to those types.
  */
 function get_allowed_mime_types( $user = null ) {
 	$t = wp_get_mime_types();
@@ -4154,7 +4159,7 @@ function smilies_init() {
 	 *
 	 * @since 4.7.0
 	 *
-	 * @param array $wpsmiliestrans List of the smilies.
+	 * @param string[] $wpsmiliestrans List of the smilies' hexadecimal representations, keyed by their smily code.
 	 */
 	$wpsmiliestrans = apply_filters( 'smilies', $wpsmiliestrans );
 
@@ -5010,8 +5015,8 @@ function iis7_supports_permalinks() {
  *
  * @since 1.2.0
  *
- * @param string $file          File path.
- * @param array  $allowed_files Optional. List of allowed files.
+ * @param string   $file          File path.
+ * @param string[] $allowed_files Optional. Array of allowed files.
  * @return int 0 means nothing is wrong, greater than 0 means something was wrong.
  */
 function validate_file( $file, $allowed_files = array() ) {
@@ -5978,7 +5983,7 @@ function wp_allowed_protocols() {
 		 *
 		 * @since 3.0.0
 		 *
-		 * @param array $protocols Array of allowed protocols e.g. 'http', 'ftp', 'tel', and more.
+		 * @param string[] $protocols Array of allowed protocols e.g. 'http', 'ftp', 'tel', and more.
 		 */
 		$protocols = array_unique( (array) apply_filters( 'kses_allowed_protocols', $protocols ) );
 	}
diff --git a/src/wp-includes/general-template.php b/src/wp-includes/general-template.php
index f9b5661f09..5228322e44 100644
--- a/src/wp-includes/general-template.php
+++ b/src/wp-includes/general-template.php
@@ -1280,7 +1280,7 @@ function wp_title( $sep = '&raquo;', $display = true, $seplocation = '' ) {
 	 *
 	 * @since 4.0.0
 	 *
-	 * @param array $title_array Parts of the page title.
+	 * @param string[] $title_array Array of parts of the page title.
 	 */
 	$title_array = apply_filters( 'wp_title_parts', explode( $t_sep, $title ) );
 
diff --git a/src/wp-includes/load.php b/src/wp-includes/load.php
index e1472201b5..fe1213a74f 100644
--- a/src/wp-includes/load.php
+++ b/src/wp-includes/load.php
@@ -704,8 +704,8 @@ function wp_get_active_and_valid_plugins() {
  *
  * @since 5.2.0
  *
- * @param array $plugins List of absolute plugin main file paths.
- * @return array Filtered value of $plugins, without any paused plugins.
+ * @param string[] $plugins Array of absolute plugin main file paths.
+ * @return string[] Filtered array of plugins, without any paused plugins.
  */
 function wp_skip_paused_plugins( array $plugins ) {
 	$paused_plugins = wp_paused_plugins()->get_all();
@@ -774,8 +774,8 @@ function wp_get_active_and_valid_themes() {
  *
  * @since 5.2.0
  *
- * @param array $themes List of absolute theme directory paths.
- * @return array Filtered value of $themes, without any paused themes.
+ * @param string[] $themes Array of absolute theme directory paths.
+ * @return string[] Filtered array of themes, without any paused themes.
  */
 function wp_skip_paused_themes( array $themes ) {
 	$paused_themes = wp_paused_themes()->get_all();
@@ -882,7 +882,7 @@ function is_protected_ajax_action() {
 	 *
 	 * @since 5.2.0
 	 *
-	 * @param array $actions_to_protect Array of strings with AJAX actions to protect.
+	 * @param string[] $actions_to_protect Array of strings with AJAX actions to protect.
 	 */
 	$actions_to_protect = (array) apply_filters( 'wp_protected_ajax_actions', $actions_to_protect );
 
diff --git a/src/wp-includes/media.php b/src/wp-includes/media.php
index 4b8f608fd2..c362a6f2b3 100644
--- a/src/wp-includes/media.php
+++ b/src/wp-includes/media.php
@@ -1039,7 +1039,7 @@ function wp_get_attachment_image( $attachment_id, $size = 'thumbnail', $icon = f
 		 *
 		 * @since 2.8.0
 		 *
-		 * @param array        $attr       Attributes for the image markup.
+		 * @param string[]     $attr       Array of attribute values for the image markup, keyed by attribute name.
 		 * @param WP_Post      $attachment Image attachment post.
 		 * @param string|array $size       Requested size. Image size or array of width and height values
 		 *                                 (in that order). Default 'thumbnail'.
@@ -1603,8 +1603,8 @@ function wp_image_add_srcset_and_sizes( $image, $image_meta, $attachment_id ) {
  * @ignore
  * @since 2.9.0
  *
- * @param array $attr Thumbnail attributes including src, class, alt, title.
- * @return array Modified array of attributes including the new 'wp-post-image' class.
+ * @param string[] $attr Array of thumbnail attributes including src, class, alt, title, keyed by attribute name.
+ * @return string[] Modified array of attributes including the new 'wp-post-image' class.
  */
 function _wp_post_thumbnail_class_filter( $attr ) {
 	$attr['class'] .= ' wp-post-image';
@@ -1618,7 +1618,7 @@ function _wp_post_thumbnail_class_filter( $attr ) {
  * @ignore
  * @since 2.9.0
  *
- * @param array $attr Thumbnail attributes including src, class, alt, title.
+ * @param string[] $attr Array of thumbnail attributes including src, class, alt, title, keyed by attribute name.
  */
 function _wp_post_thumbnail_class_filter_add( $attr ) {
 	add_filter( 'wp_get_attachment_image_attributes', '_wp_post_thumbnail_class_filter' );
@@ -1631,7 +1631,7 @@ function _wp_post_thumbnail_class_filter_add( $attr ) {
  * @ignore
  * @since 2.9.0
  *
- * @param array $attr Thumbnail attributes including src, class, alt, title.
+ * @param string[] $attr Array of thumbnail attributes including src, class, alt, title, keyed by attribute name.
  */
 function _wp_post_thumbnail_class_filter_remove( $attr ) {
 	remove_filter( 'wp_get_attachment_image_attributes', '_wp_post_thumbnail_class_filter' );
@@ -2416,7 +2416,7 @@ function wp_mediaelement_fallback( $url ) {
  *
  * @since 3.6.0
  *
- * @return array Supported audio formats.
+ * @return string[] Supported audio formats.
  */
 function wp_get_audio_extensions() {
 	/**
@@ -2424,8 +2424,8 @@ function wp_get_audio_extensions() {
 	 *
 	 * @since 3.6.0
 	 *
-	 * @param array $extensions An array of supported audio formats. Defaults are
-	 *                          'mp3', 'ogg', 'flac', 'm4a', 'wav'.
+	 * @param string[] $extensions An array of supported audio formats. Defaults are
+	 *                            'mp3', 'ogg', 'flac', 'm4a', 'wav'.
 	 */
 	return apply_filters( 'wp_audio_extensions', array( 'mp3', 'ogg', 'flac', 'm4a', 'wav' ) );
 }
@@ -2664,7 +2664,7 @@ add_shortcode( 'audio', 'wp_audio_shortcode' );
  *
  * @since 3.6.0
  *
- * @return array List of supported video formats.
+ * @return string[] List of supported video formats.
  */
 function wp_get_video_extensions() {
 	/**
@@ -2672,8 +2672,8 @@ function wp_get_video_extensions() {
 	 *
 	 * @since 3.6.0
 	 *
-	 * @param array $extensions An array of supported video formats. Defaults are
-	 *                          'mp4', 'm4v', 'webm', 'ogv', 'flv'.
+	 * @param string[] $extensions An array of supported video formats. Defaults are
+	 *                             'mp4', 'm4v', 'webm', 'ogv', 'flv'.
 	 */
 	return apply_filters( 'wp_video_extensions', array( 'mp4', 'm4v', 'webm', 'ogv', 'flv' ) );
 }
@@ -3266,8 +3266,8 @@ function _wp_image_editor_choose( $args = array() ) {
 	 *
 	 * @since 3.5.0
 	 *
-	 * @param array $image_editors List of available image editors. Defaults are
-	 *                             'WP_Image_Editor_Imagick', 'WP_Image_Editor_GD'.
+	 * @param string[] $image_editors Array of available image editor class names. Defaults are
+	 *                                'WP_Image_Editor_Imagick', 'WP_Image_Editor_GD'.
 	 */
 	$implementations = apply_filters( 'wp_image_editors', array( 'WP_Image_Editor_Imagick', 'WP_Image_Editor_GD' ) );
 
@@ -3983,8 +3983,8 @@ function wp_enqueue_media( $args = array() ) {
 	 *
 	 * @since 3.5.0
 	 *
-	 * @param array   $strings List of media view strings.
-	 * @param WP_Post $post    Post object.
+	 * @param string[] $strings Array of media view strings keyed by the name they'll be referenced by in JavaScript.
+	 * @param WP_Post  $post    Post object.
 	 */
 	$strings = apply_filters( 'media_view_strings', $strings, $post );
 
@@ -4024,7 +4024,7 @@ function wp_enqueue_media( $args = array() ) {
  *
  * @param string      $type Mime type.
  * @param int|WP_Post $post Optional. Post ID or WP_Post object. Default is global $post.
- * @return array Found attachments.
+ * @return WP_Post[] Array of media attached to the given post.
  */
 function get_attached_media( $type, $post = 0 ) {
 	$post = get_post( $post );
@@ -4060,9 +4060,9 @@ function get_attached_media( $type, $post = 0 ) {
 	 *
 	 * @since 3.6.0
 	 *
-	 * @param array   $children Associative array of media attached to the given post.
-	 * @param string  $type     Mime type of the media desired.
-	 * @param WP_Post $post     Post object.
+	 * @param WP_Post[] $children Array of media attached to the given post.
+	 * @param string    $type     Mime type of the media desired.
+	 * @param WP_Post   $post     Post object.
 	 */
 	return (array) apply_filters( 'get_attached_media', $children, $type, $post );
 }
@@ -4072,9 +4072,9 @@ function get_attached_media( $type, $post = 0 ) {
  *
  * @since 3.6.0
  *
- * @param string $content A string which might contain media data.
- * @param array  $types   An array of media types: 'audio', 'video', 'object', 'embed', or 'iframe'.
- * @return array A list of found HTML media embeds.
+ * @param string   $content A string of HTML which might contain media elements.
+ * @param string[] $types   An array of media types: 'audio', 'video', 'object', 'embed', or 'iframe'.
+ * @return string[] Array of found HTML media elements.
  */
 function get_media_embedded_in_content( $content, $types = null ) {
 	$html = array();
@@ -4084,8 +4084,8 @@ function get_media_embedded_in_content( $content, $types = null ) {
 	 *
 	 * @since 4.2.0
 	 *
-	 * @param array $allowed_media_types An array of allowed media types. Default media types are
-	 *                                   'audio', 'video', 'object', 'embed', and 'iframe'.
+	 * @param string[] $allowed_media_types An array of allowed media types. Default media types are
+	 *                                      'audio', 'video', 'object', 'embed', and 'iframe'.
 	 */
 	$allowed_media_types = apply_filters( 'media_embedded_in_content_allowed_types', array( 'audio', 'video', 'object', 'embed', 'iframe' ) );
 
@@ -4326,8 +4326,8 @@ function wpview_media_sandbox_styles() {
 /**
  * Registers the personal data exporter for media.
  *
- * @param array   $exporters   An array of personal data exporters.
- * @return array  An array of personal data exporters.
+ * @param array[] $exporters An array of personal data exporters, keyed by their ID.
+ * @return array[] Updated array of personal data exporters.
  */
 function wp_register_media_personal_data_exporter( $exporters ) {
 	$exporters['wordpress-media'] = array(
diff --git a/src/wp-includes/meta.php b/src/wp-includes/meta.php
index bc6b05d953..5770645e09 100644
--- a/src/wp-includes/meta.php
+++ b/src/wp-includes/meta.php
@@ -406,10 +406,10 @@ function delete_metadata( $meta_type, $object_id, $meta_key, $meta_value = '', $
 	 *
 	 * @since 3.1.0
 	 *
-	 * @param array  $meta_ids    An array of metadata entry IDs to delete.
-	 * @param int    $object_id   Object ID.
-	 * @param string $meta_key    Meta key.
-	 * @param mixed  $_meta_value Meta value.
+	 * @param string[] $meta_ids    An array of metadata entry IDs to delete.
+	 * @param int      $object_id   Object ID.
+	 * @param string   $meta_key    Meta key.
+	 * @param mixed    $_meta_value Meta value.
 	 */
 	do_action( "delete_{$meta_type}_meta", $meta_ids, $object_id, $meta_key, $_meta_value );
 
@@ -420,7 +420,7 @@ function delete_metadata( $meta_type, $object_id, $meta_key, $meta_value = '', $
 		 *
 		 * @since 2.9.0
 		 *
-		 * @param array $meta_ids An array of post metadata entry IDs to delete.
+		 * @param string[] $meta_ids An array of metadata entry IDs to delete.
 		 */
 		do_action( 'delete_postmeta', $meta_ids );
 	}
@@ -449,10 +449,10 @@ function delete_metadata( $meta_type, $object_id, $meta_key, $meta_value = '', $
 	 *
 	 * @since 2.9.0
 	 *
-	 * @param array  $meta_ids    An array of deleted metadata entry IDs.
-	 * @param int    $object_id   Object ID.
-	 * @param string $meta_key    Meta key.
-	 * @param mixed  $_meta_value Meta value.
+	 * @param string[] $meta_ids    An array of metadata entry IDs to delete.
+	 * @param int      $object_id   Object ID.
+	 * @param string   $meta_key    Meta key.
+	 * @param mixed    $_meta_value Meta value.
 	 */
 	do_action( "deleted_{$meta_type}_meta", $meta_ids, $object_id, $meta_key, $_meta_value );
 
@@ -463,7 +463,7 @@ function delete_metadata( $meta_type, $object_id, $meta_key, $meta_value = '', $
 		 *
 		 * @since 2.9.0
 		 *
-		 * @param array $meta_ids An array of deleted post metadata entry IDs.
+		 * @param string[] $meta_ids An array of metadata entry IDs to delete.
 		 */
 		do_action( 'deleted_postmeta', $meta_ids );
 	}
diff --git a/src/wp-includes/ms-functions.php b/src/wp-includes/ms-functions.php
index ef5588554f..99a5533dc2 100644
--- a/src/wp-includes/ms-functions.php
+++ b/src/wp-includes/ms-functions.php
@@ -2600,7 +2600,7 @@ function get_subdirectory_reserved_names() {
 	 * @since 4.4.0 'wp-admin', 'wp-content', 'wp-includes', 'wp-json', and 'embed' were added
 	 *              to the reserved names list.
 	 *
-	 * @param array $subdirectory_reserved_names Array of reserved names.
+	 * @param string[] $subdirectory_reserved_names Array of reserved names.
 	 */
 	return apply_filters( 'subdirectory_reserved_names', $names );
 }
diff --git a/src/wp-includes/ms-load.php b/src/wp-includes/ms-load.php
index e3ed91536a..1f4c64dc42 100644
--- a/src/wp-includes/ms-load.php
+++ b/src/wp-includes/ms-load.php
@@ -208,7 +208,7 @@ function get_site_by_path( $domain, $path, $segments = null ) {
 	 * @param string             $path     The requested path, in full.
 	 * @param int|null           $segments The suggested number of paths to consult.
 	 *                                     Default null, meaning the entire path was to be consulted.
-	 * @param array              $paths    The paths to search for, based on $path and $segments.
+	 * @param string[]           $paths    The paths to search for, based on $path and $segments.
 	 */
 	$pre = apply_filters( 'pre_get_site_by_path', null, $domain, $path, $segments, $paths );
 	if ( null !== $pre ) {
diff --git a/src/wp-includes/nav-menu-template.php b/src/wp-includes/nav-menu-template.php
index 1910e1737e..649f4cfd76 100644
--- a/src/wp-includes/nav-menu-template.php
+++ b/src/wp-includes/nav-menu-template.php
@@ -169,8 +169,8 @@ function wp_nav_menu( $args = array() ) {
 		 *
 		 * @since 3.0.0
 		 *
-		 * @param array $tags The acceptable HTML tags for use as menu containers.
-		 *                    Default is array containing 'div' and 'nav'.
+		 * @param string[] $tags The acceptable HTML tags for use as menu containers.
+		 *                       Default is array containing 'div' and 'nav'.
 		 */
 		$allowed_tags = apply_filters( 'wp_nav_menu_container_allowedtags', array( 'div', 'nav' ) );
 		if ( is_string( $args->container ) && in_array( $args->container, $allowed_tags ) ) {
diff --git a/src/wp-includes/nav-menu.php b/src/wp-includes/nav-menu.php
index b9a603f8d6..7b6435597b 100644
--- a/src/wp-includes/nav-menu.php
+++ b/src/wp-includes/nav-menu.php
@@ -617,8 +617,8 @@ function wp_get_nav_menus( $args = array() ) {
 	 *
 	 * @see get_terms()
 	 *
-	 * @param array $menus An array of menu objects.
-	 * @param array $args  An array of arguments used to retrieve menu objects.
+	 * @param WP_Term[] $menus An array of menu objects.
+	 * @param array     $args  An array of arguments used to retrieve menu objects.
 	 */
 	return apply_filters( 'wp_get_nav_menus', get_terms( $args ), $args );
 }
diff --git a/src/wp-includes/pluggable.php b/src/wp-includes/pluggable.php
index fe6822d210..76babe3f23 100644
--- a/src/wp-includes/pluggable.php
+++ b/src/wp-includes/pluggable.php
@@ -635,7 +635,7 @@ if ( ! function_exists( 'wp_validate_auth_cookie' ) ) :
 			 *
 			 * @since 2.7.0
 			 *
-			 * @param array $cookie_elements An array of data for the authentication cookie.
+			 * @param string[] $cookie_elements An array of data for the authentication cookie.
 			 */
 			do_action( 'auth_cookie_expired', $cookie_elements );
 			return false;
@@ -648,7 +648,7 @@ if ( ! function_exists( 'wp_validate_auth_cookie' ) ) :
 			 *
 			 * @since 2.7.0
 			 *
-			 * @param array $cookie_elements An array of data for the authentication cookie.
+			 * @param string[] $cookie_elements An array of data for the authentication cookie.
 			 */
 			do_action( 'auth_cookie_bad_username', $cookie_elements );
 			return false;
@@ -668,7 +668,7 @@ if ( ! function_exists( 'wp_validate_auth_cookie' ) ) :
 			 *
 			 * @since 2.7.0
 			 *
-			 * @param array $cookie_elements An array of data for the authentication cookie.
+			 * @param string[] $cookie_elements An array of data for the authentication cookie.
 			 */
 			do_action( 'auth_cookie_bad_hash', $cookie_elements );
 			return false;
@@ -690,8 +690,8 @@ if ( ! function_exists( 'wp_validate_auth_cookie' ) ) :
 		 *
 		 * @since 2.7.0
 		 *
-		 * @param array   $cookie_elements An array of data for the authentication cookie.
-		 * @param WP_User $user            User object.
+		 * @param string[] $cookie_elements An array of data for the authentication cookie.
+		 * @param WP_User  $user            User object.
 		 */
 		do_action( 'auth_cookie_valid', $cookie_elements, $user );
 
@@ -758,7 +758,7 @@ if ( ! function_exists( 'wp_parse_auth_cookie' ) ) :
 	 *
 	 * @param string $cookie Authentication cookie.
 	 * @param string $scheme Optional. The cookie scheme to use: 'auth', 'secure_auth', or 'logged_in'.
-	 * @return array|false Authentication cookie components.
+	 * @return string[]|false Authentication cookie components.
 	 */
 	function wp_parse_auth_cookie( $cookie = '', $scheme = '' ) {
 		if ( empty( $cookie ) ) {
@@ -1442,8 +1442,8 @@ if ( ! function_exists( 'wp_validate_redirect' ) ) :
 		 *
 		 * @since 2.3.0
 		 *
-		 * @param array       $hosts An array of allowed hosts.
-		 * @param bool|string $host  The parsed host; empty if not isset.
+		 * @param string[] $hosts An array of allowed host names.
+		 * @param string   $host  The host name of the redirect destination; empty string if not set.
 		 */
 		$allowed_hosts = (array) apply_filters( 'allowed_redirect_hosts', array( $wpp['host'] ), isset( $lp['host'] ) ? $lp['host'] : '' );
 
@@ -1492,8 +1492,8 @@ if ( ! function_exists( 'wp_notify_postauthor' ) ) :
 		 *
 		 * @since 3.7.0
 		 *
-		 * @param array $emails     An array of email addresses to receive a comment notification.
-		 * @param int   $comment_id The comment ID.
+		 * @param string[] $emails     An array of email addresses to receive a comment notification.
+		 * @param int      $comment_id The comment ID.
 		 */
 		$emails = apply_filters( 'comment_notification_recipients', $emails, $comment->comment_ID );
 		$emails = array_filter( $emails );
@@ -1804,8 +1804,8 @@ if ( ! function_exists( 'wp_notify_moderator' ) ) :
 		 *
 		 * @since 3.7.0
 		 *
-		 * @param array $emails     List of email addresses to notify for comment moderation.
-		 * @param int   $comment_id Comment ID.
+		 * @param string[] $emails     List of email addresses to notify for comment moderation.
+		 * @param int      $comment_id Comment ID.
 		 */
 		$emails = apply_filters( 'comment_moderation_recipients', $emails, $comment_id );
 
diff --git a/src/wp-includes/post-template.php b/src/wp-includes/post-template.php
index 868c521f8b..8bed3945f5 100644
--- a/src/wp-includes/post-template.php
+++ b/src/wp-includes/post-template.php
@@ -1202,9 +1202,9 @@ function wp_dropdown_pages( $args = '' ) {
 	 * @since 2.1.0
 	 * @since 4.4.0 `$parsed_args` and `$pages` added as arguments.
 	 *
-	 * @param string $output      HTML output for drop down list of pages.
-	 * @param array  $parsed_args The parsed arguments array.
-	 * @param array  $pages       List of WP_Post objects returned by `get_pages()`
+	 * @param string    $output      HTML output for drop down list of pages.
+	 * @param array     $parsed_args The parsed arguments array.
+	 * @param WP_Post[] $pages       Array of the page objects.
 	 */
 	$html = apply_filters( 'wp_dropdown_pages', $output, $parsed_args, $pages );
 
@@ -1292,7 +1292,7 @@ function wp_list_pages( $args = '' ) {
 	 *
 	 * @since 2.1.0
 	 *
-	 * @param array $exclude_array An array of page IDs to exclude.
+	 * @param string[] $exclude_array An array of page IDs to exclude.
 	 */
 	$parsed_args['exclude'] = implode( ',', apply_filters( 'wp_list_pages_excludes', $exclude_array ) );
 
@@ -1330,9 +1330,9 @@ function wp_list_pages( $args = '' ) {
 	 *
 	 * @see wp_list_pages()
 	 *
-	 * @param string $output      HTML output of the pages list.
-	 * @param array  $parsed_args An array of page-listing arguments.
-	 * @param array  $pages       List of WP_Post objects returned by `get_pages()`
+	 * @param string    $output      HTML output of the pages list.
+	 * @param array     $parsed_args An array of page-listing arguments.
+	 * @param WP_Post[] $pages       Array of the page objects.
 	 */
 	$html = apply_filters( 'wp_list_pages', $output, $parsed_args, $pages );
 
diff --git a/src/wp-includes/post.php b/src/wp-includes/post.php
index deb215e17d..1ba7dfb41f 100644
--- a/src/wp-includes/post.php
+++ b/src/wp-includes/post.php
@@ -632,8 +632,7 @@ function _wp_relative_upload_path( $path ) {
  * @param mixed  $args   Optional. User defined arguments for replacing the defaults. Default empty.
  * @param string $output Optional. The required return type. One of OBJECT, ARRAY_A, or ARRAY_N, which correspond to
  *                       a WP_Post object, an associative array, or a numeric array, respectively. Default OBJECT.
- * @return array Array of children, where the type of each element is determined by $output parameter.
- *               Empty array on failure.
+ * @return WP_Post[]|int[] Array of post objects or post IDs.
  */
 function get_children( $args = '', $output = OBJECT ) {
 	$kids = array();
@@ -1599,7 +1598,7 @@ function get_post_type_capabilities( $args ) {
  *
  * @global array $post_type_meta_caps Used to store meta capabilities.
  *
- * @param array $capabilities Post type meta capabilities.
+ * @param string[] $capabilities Post type meta capabilities.
  */
 function _post_type_meta_capabilities( $capabilities = null ) {
 	global $post_type_meta_caps;
@@ -4731,8 +4730,8 @@ function get_enclosed( $post_id ) {
 	 *
 	 * @since 2.0.0
 	 *
-	 * @param array $pung    Array of enclosures for the given post.
-	 * @param int   $post_id Post ID.
+	 * @param string[] $pung    Array of enclosures for the given post.
+	 * @param int      $post_id Post ID.
 	 */
 	return apply_filters( 'get_enclosed', $pung, $post_id );
 }
@@ -4773,7 +4772,7 @@ function get_pung( $post_id ) {
  * @since 4.7.0 `$post_id` can be a WP_Post object.
  *
  * @param int|WP_Post $post_id Post Object or ID
- * @return array
+ * @param string[] List of URLs yet to ping.
  */
 function get_to_ping( $post_id ) {
 	$post = get_post( $post_id );
@@ -4790,7 +4789,7 @@ function get_to_ping( $post_id ) {
 	 *
 	 * @since 2.0.0
 	 *
-	 * @param array $to_ping List of URLs yet to ping.
+	 * @param string[] $to_ping List of URLs yet to ping.
 	 */
 	return apply_filters( 'get_to_ping', $to_ping );
 }
@@ -5065,9 +5064,9 @@ function get_page_children( $page_id, $pages ) {
  *
  * @since 2.0.0
  *
- * @param array $pages   Posts array (passed by reference).
- * @param int   $page_id Optional. Parent page ID. Default 0.
- * @return array A list arranged by hierarchy. Children immediately follow their parents.
+ * @param WP_Post[] $pages   Posts array (passed by reference).
+ * @param int       $page_id Optional. Parent page ID. Default 0.
+ * @return string[] Array of post names keyed by ID and arranged by hierarchy. Children immediately follow their parents.
  */
 function get_page_hierarchy( &$pages, $page_id = 0 ) {
 	if ( empty( $pages ) ) {
@@ -5096,9 +5095,9 @@ function get_page_hierarchy( &$pages, $page_id = 0 ) {
  *
  * @see _page_traverse_name()
  *
- * @param int   $page_id   Page ID.
- * @param array $children  Parent-children relations (passed by reference).
- * @param array $result    Result (passed by reference).
+ * @param int      $page_id  Page ID.
+ * @param array    $children Parent-children relations (passed by reference).
+ * @param string[] $result   Array of page names keyed by ID (passed by reference).
  */
 function _page_traverse_name( $page_id, &$children, &$result ) {
 	if ( isset( $children[ $page_id ] ) ) {
@@ -5461,8 +5460,8 @@ function get_pages( $args = array() ) {
 	 *
 	 * @since 2.1.0
 	 *
-	 * @param array $pages List of pages to retrieve.
-	 * @param array $parsed_args     Array of get_pages() arguments.
+	 * @param WP_Post[] $pages       Array of page objects.
+	 * @param array     $parsed_args Array of get_pages() arguments.
 	 */
 	return apply_filters( 'get_pages', $pages, $parsed_args );
 }
@@ -6107,11 +6106,11 @@ function wp_mime_type_icon( $mime = 0 ) {
 			$icon_dir_uri = apply_filters( 'icon_dir_uri', includes_url( 'images/media' ) );
 
 			/**
-			 * Filters the list of icon directory URIs.
+			 * Filters the array of icon directory URIs.
 			 *
 			 * @since 2.5.0
 			 *
-			 * @param array $uris List of icon directory URIs.
+			 * @param string[] $uris Array of icon directory URIs keyed by directory absolute path.
 			 */
 			$dirs       = apply_filters( 'icon_dirs', array( $icon_dir => $icon_dir_uri ) );
 			$icon_files = array();
@@ -7095,9 +7094,9 @@ function wp_add_trashed_suffix_to_post_name_for_post( $post ) {
  *
  * @global wpdb $wpdb WordPress database abstraction object.
  *
- * @param array $clauses An array including WHERE, GROUP BY, JOIN, ORDER BY,
- *                       DISTINCT, fields (SELECT), and LIMITS clauses.
- * @return array The modified clauses.
+ * @param string[] $clauses An array including WHERE, GROUP BY, JOIN, ORDER BY,
+ *                          DISTINCT, fields (SELECT), and LIMITS clauses.
+ * @return string[] The modified array of clauses.
  */
 function _filter_query_attachment_filenames( $clauses ) {
 	global $wpdb;
diff --git a/src/wp-includes/taxonomy.php b/src/wp-includes/taxonomy.php
index 4631a534dd..5120c0f43c 100644
--- a/src/wp-includes/taxonomy.php
+++ b/src/wp-includes/taxonomy.php
@@ -1132,8 +1132,8 @@ function get_term_to_edit( $id, $taxonomy ) {
  * @param array|string $deprecated Argument array, when using the legacy function parameter format. If present, this
  *                                 parameter will be interpreted as `$args`, and the first function parameter will
  *                                 be parsed as a taxonomy or array of taxonomies.
- * @return array|int|WP_Error List of WP_Term instances and their children. Will return WP_Error, if any of taxonomies
- *                            do not exist.
+ * @return WP_Term[]|int|WP_Error List of WP_Term instances and their children. Will return WP_Error, if any of taxonomies
+ *                                do not exist.
  */
 function get_terms( $args = array(), $deprecated = '' ) {
 	$term_query = new WP_Term_Query();
@@ -3219,9 +3219,9 @@ function clean_object_term_cache( $object_ids, $object_type ) {
  * @global wpdb $wpdb                           WordPress database abstraction object.
  * @global bool $_wp_suspend_cache_invalidation
  *
- * @param int|array $ids            Single or list of Term IDs.
- * @param string    $taxonomy       Optional. Can be empty and will assume `tt_ids`, else will use for context.
- *                                  Default empty.
+ * @param int|int[] $ids            Single or array of term IDs.
+ * @param string    $taxonomy       Optional. Taxonomy slug. Can be empty, in which case the taxonomies of the passed
+ *                                  term IDs will be used. Default empty.
  * @param bool      $clean_taxonomy Optional. Whether to clean taxonomy wide caches (true), or just individual
  *                                  term object caches (false). Default true.
  */
@@ -3436,8 +3436,8 @@ function update_object_term_cache( $object_ids, $object_type ) {
  *
  * @since 2.3.0
  *
- * @param array  $terms    List of term objects to change.
- * @param string $taxonomy Optional. Update Term to this taxonomy in cache. Default empty.
+ * @param WP_Term[] $terms    Array of term objects to change.
+ * @param string    $taxonomy Not used.
  */
 function update_term_cache( $terms, $taxonomy = '' ) {
 	foreach ( (array) $terms as $term ) {