diff --git a/src/wp-admin/includes/plugin.php b/src/wp-admin/includes/plugin.php
index 6e332c247e..0934d6b810 100644
--- a/src/wp-admin/includes/plugin.php
+++ b/src/wp-admin/includes/plugin.php
@@ -1278,7 +1278,7 @@ function uninstall_plugin( $plugin ) {
 //
 
 /**
- * Add a top-level menu page.
+ * Adds a top-level menu page.
  *
  * This function takes a capability which will be used to determine whether
  * or not a page is included in the menu.
@@ -1350,7 +1350,7 @@ function add_menu_page( $page_title, $menu_title, $capability, $menu_slug, $func
 }
 
 /**
- * Add a submenu page.
+ * Adds a submenu page.
  *
  * This function takes a capability which will be used to determine whether
  * or not a page is included in the menu.
@@ -1474,7 +1474,7 @@ function add_submenu_page( $parent_slug, $page_title, $menu_title, $capability,
 }
 
 /**
- * Add submenu page to the Tools main menu.
+ * Adds a submenu page to the Tools main menu.
  *
  * This function takes a capability which will be used to determine whether
  * or not a page is included in the menu.
@@ -1498,7 +1498,7 @@ function add_management_page( $page_title, $menu_title, $capability, $menu_slug,
 }
 
 /**
- * Add submenu page to the Settings main menu.
+ * Adds a submenu page to the Settings main menu.
  *
  * This function takes a capability which will be used to determine whether
  * or not a page is included in the menu.
@@ -1522,7 +1522,7 @@ function add_options_page( $page_title, $menu_title, $capability, $menu_slug, $f
 }
 
 /**
- * Add submenu page to the Appearance main menu.
+ * Adds a submenu page to the Appearance main menu.
  *
  * This function takes a capability which will be used to determine whether
  * or not a page is included in the menu.
@@ -1546,7 +1546,7 @@ function add_theme_page( $page_title, $menu_title, $capability, $menu_slug, $fun
 }
 
 /**
- * Add submenu page to the Plugins main menu.
+ * Adds a submenu page to the Plugins main menu.
  *
  * This function takes a capability which will be used to determine whether
  * or not a page is included in the menu.
@@ -1570,7 +1570,7 @@ function add_plugins_page( $page_title, $menu_title, $capability, $menu_slug, $f
 }
 
 /**
- * Add submenu page to the Users/Profile main menu.
+ * Adds a submenu page to the Users/Profile main menu.
  *
  * This function takes a capability which will be used to determine whether
  * or not a page is included in the menu.
@@ -1599,7 +1599,7 @@ function add_users_page( $page_title, $menu_title, $capability, $menu_slug, $fun
 }
 
 /**
- * Add submenu page to the Dashboard main menu.
+ * Adds a submenu page to the Dashboard main menu.
  *
  * This function takes a capability which will be used to determine whether
  * or not a page is included in the menu.
@@ -1623,7 +1623,7 @@ function add_dashboard_page( $page_title, $menu_title, $capability, $menu_slug,
 }
 
 /**
- * Add submenu page to the Posts main menu.
+ * Adds a submenu page to the Posts main menu.
  *
  * This function takes a capability which will be used to determine whether
  * or not a page is included in the menu.
@@ -1647,7 +1647,7 @@ function add_posts_page( $page_title, $menu_title, $capability, $menu_slug, $fun
 }
 
 /**
- * Add submenu page to the Media main menu.
+ * Adds a submenu page to the Media main menu.
  *
  * This function takes a capability which will be used to determine whether
  * or not a page is included in the menu.
@@ -1671,7 +1671,7 @@ function add_media_page( $page_title, $menu_title, $capability, $menu_slug, $fun
 }
 
 /**
- * Add submenu page to the Links main menu.
+ * Adds a submenu page to the Links main menu.
  *
  * This function takes a capability which will be used to determine whether
  * or not a page is included in the menu.
@@ -1695,7 +1695,7 @@ function add_links_page( $page_title, $menu_title, $capability, $menu_slug, $fun
 }
 
 /**
- * Add submenu page to the Pages main menu.
+ * Adds a submenu page to the Pages main menu.
  *
  * This function takes a capability which will be used to determine whether
  * or not a page is included in the menu.
@@ -1719,7 +1719,7 @@ function add_pages_page( $page_title, $menu_title, $capability, $menu_slug, $fun
 }
 
 /**
- * Add submenu page to the Comments main menu.
+ * Adds a submenu page to the Comments main menu.
  *
  * This function takes a capability which will be used to determine whether
  * or not a page is included in the menu.
@@ -1743,7 +1743,12 @@ function add_comments_page( $page_title, $menu_title, $capability, $menu_slug, $
 }
 
 /**
- * Remove a top-level admin menu.
+ * Removes a top-level admin menu.
+ *
+ * Example usage:
+ *
+ *  - `remove_menu_page( 'tools.php' )`
+ *  - `remove_menu_page( 'plugin_menu_slug' )`
  *
  * @since 3.1.0
  *
@@ -1766,7 +1771,13 @@ function remove_menu_page( $menu_slug ) {
 }
 
 /**
- * Remove an admin submenu.
+ * Removes an admin submenu.
+ *
+ * Example usage:
+ *
+ *  - `remove_submenu_page( 'themes.php', 'nav-menus.php' )`
+ *  - `remove_submenu_page( 'tools.php', 'plugin_submenu_slug' )`
+ *  - `remove_submenu_page( 'plugin_menu_slug', 'plugin_submenu_slug' )`
  *
  * @since 3.1.0
  *
@@ -1794,7 +1805,7 @@ function remove_submenu_page( $menu_slug, $submenu_slug ) {
 }
 
 /**
- * Get the URL to access a particular menu page based on the slug it was registered with.
+ * Gets the URL to access a particular menu page based on the slug it was registered with.
  *
  * If the slug hasn't been registered properly, no URL will be returned.
  *
diff --git a/src/wp-admin/includes/upgrade.php b/src/wp-admin/includes/upgrade.php
index b558819771..3be073f7af 100644
--- a/src/wp-admin/includes/upgrade.php
+++ b/src/wp-admin/includes/upgrade.php
@@ -1878,7 +1878,6 @@ function upgrade_370() {
  *
  * @ignore
  * @since 3.7.2
- * @since 3.8.0
  *
  * @global int $wp_current_db_version The old (current) database version.
  */
diff --git a/src/wp-includes/cron.php b/src/wp-includes/cron.php
index 41efeebc44..8e50349f5d 100644
--- a/src/wp-includes/cron.php
+++ b/src/wp-includes/cron.php
@@ -1040,7 +1040,7 @@ function _wp_cron() {
  * @since 2.1.0
  * @since 5.4.0 The 'weekly' schedule was added.
  *
- * @return array
+ * @return array[]
  */
 function wp_get_schedules() {
 	$schedules = array(
@@ -1067,7 +1067,7 @@ function wp_get_schedules() {
 	 *
 	 * @since 2.1.0
 	 *
-	 * @param array $new_schedules An array of non-default cron schedules. Default empty.
+	 * @param array[] $new_schedules An array of non-default cron schedule arrays. Default empty.
 	 */
 	return array_merge( apply_filters( 'cron_schedules', array() ), $schedules );
 }
diff --git a/src/wp-includes/formatting.php b/src/wp-includes/formatting.php
index 2eccfb0fde..9461297dee 100644
--- a/src/wp-includes/formatting.php
+++ b/src/wp-includes/formatting.php
@@ -3539,8 +3539,8 @@ function get_gmt_from_date( $string, $format = 'Y-m-d H:i:s' ) {
 /**
  * Given a date in UTC or GMT timezone, returns that date in the timezone of the site.
  *
- * Requires and returns a date in the Y-m-d H:i:s format.
- * Return format can be overridden using the $format parameter.
+ * Requires a date in the Y-m-d H:i:s format.
+ * Default return format of 'Y-m-d H:i:s' can be overridden using the `$format` parameter.
  *
  * @since 1.2.0
  *
diff --git a/src/wp-includes/theme.php b/src/wp-includes/theme.php
index 384c056404..e233b4127a 100644
--- a/src/wp-includes/theme.php
+++ b/src/wp-includes/theme.php
@@ -3073,7 +3073,7 @@ function require_if_theme_supports( $feature, $include ) {
  *     @type string     $type         The type of data associated with this feature.
  *                                    Valid values are 'string', 'boolean', 'integer',
  *                                    'number', 'array', and 'object'. Defaults to 'boolean'.
- *     @type boolean    $variadic     Does this feature utilize the variadic support
+ *     @type bool       $variadic     Does this feature utilize the variadic support
  *                                    of add_theme_support(), or are all arguments specified
  *                                    as the second parameter. Must be used with the "array" type.
  *     @type string     $description  A short description of the feature. Included in
diff --git a/src/wp-login.php b/src/wp-login.php
index 0d030863ed..b7c14b4c83 100644
--- a/src/wp-login.php
+++ b/src/wp-login.php
@@ -434,18 +434,18 @@ do_action( 'login_init' );
  *
  * Possible hook names include:
  *
- *  - 'login_form_checkemail'
- *  - 'login_form_confirm_admin_email'
- *  - 'login_form_confirmaction'
- *  - 'login_form_entered_recovery_mode'
- *  - 'login_form_login'
- *  - 'login_form_logout'
- *  - 'login_form_lostpassword'
- *  - 'login_form_postpass'
- *  - 'login_form_register'
- *  - 'login_form_resetpass'
- *  - 'login_form_retrievepassword'
- *  - 'login_form_rp'
+ *  - `login_form_checkemail`
+ *  - `login_form_confirm_admin_email`
+ *  - `login_form_confirmaction`
+ *  - `login_form_entered_recovery_mode`
+ *  - `login_form_login`
+ *  - `login_form_logout`
+ *  - `login_form_lostpassword`
+ *  - `login_form_postpass`
+ *  - `login_form_register`
+ *  - `login_form_resetpass`
+ *  - `login_form_retrievepassword`
+ *  - `login_form_rp`
  *
  * @since 2.8.0
  */