_admin_notice_post_locked() – Outputs the HTML for the notice to say that someone else is editing or has taken over editing of this post.
_nx() – Translates and retrieves the singular or plural form based on the supplied number, with gettext context.
_prime_network_caches() – Adds any networks from the given IDs to the cache that do not already exist in cache.
_wp_expand_nav_menu_post_data() – If a JSON blob of navigation menu data is in POST data, expand it and inject it into `$_POST` to avoid PHP `max_input_vars` limitations. See #14134.
dashboard_php_nag_class() – Adds an additional class to the PHP nag if the current version is insecure.
get_comments_number_text() – Displays the language string for the number of comments the current post has.
get_current_site_name() – This deprecated function formerly set the site_name property of the $current_site object.
get_nav_menu_locations() – Retrieves all registered navigation menu locations and the menus assigned to them.