diff --git a/src/js/media/views/attachments/browser.js b/src/js/media/views/attachments/browser.js
index a757a47f50..1b78f234f4 100644
--- a/src/js/media/views/attachments/browser.js
+++ b/src/js/media/views/attachments/browser.js
@@ -50,7 +50,7 @@ AttachmentsBrowser = View.extend(/** @lends wp.media.view.AttachmentsBrowser.pro
 
 		/*
 		 * For accessibility reasons, place the Inline Uploader before other sections.
-		 * This way, in the Media Library, it's right after the Add New button, see ticket #37188.
+		 * This way, in the Media Library, it's right after the Add New Media button, see ticket #37188.
 		 */
 		this.createUploader();
 
diff --git a/src/js/media/views/frame/manage.js b/src/js/media/views/frame/manage.js
index 4c244120a2..19aaa0109b 100644
--- a/src/js/media/views/frame/manage.js
+++ b/src/js/media/views/frame/manage.js
@@ -40,7 +40,7 @@ Manage = MediaFrame.extend(/** @lends wp.media.view.MediaFrame.Manage.prototype
 		this.$body = $( document.body );
 		this.$window = $( window );
 		this.$adminBar = $( '#wpadminbar' );
-		// Store the Add New button for later reuse in wp.media.view.UploaderInline.
+		// Store the Add New Media button for later reuse in wp.media.view.UploaderInline.
 		this.$uploaderToggler = $( '.page-title-action' )
 			.attr( 'aria-expanded', 'false' )
 			.on( 'click', _.bind( this.addNewClickHandler, this ) );
@@ -194,7 +194,7 @@ Manage = MediaFrame.extend(/** @lends wp.media.view.MediaFrame.Manage.prototype
 	},
 
 	/**
-	 * Click handler for the `Add New` button.
+	 * Click handler for the `Add New Media` button.
 	 */
 	addNewClickHandler: function( event ) {
 		event.preventDefault();
diff --git a/src/wp-admin/link-manager.php b/src/wp-admin/link-manager.php
index e8418ea0ec..3b95bfc97d 100644
--- a/src/wp-admin/link-manager.php
+++ b/src/wp-admin/link-manager.php
@@ -98,7 +98,7 @@ echo esc_html( $title );
 ?>
 </h1>
 
-<a href="link-add.php" class="page-title-action"><?php echo esc_html_x( 'Add New', 'link' ); ?></a>
+<a href="link-add.php" class="page-title-action"><?php esc_html_e( 'Add New Link' ); ?></a>
 
 <?php
 if ( isset( $_REQUEST['s'] ) && strlen( $_REQUEST['s'] ) ) {
diff --git a/src/wp-admin/media.php b/src/wp-admin/media.php
index 1e09eda2f8..48fa79dc90 100644
--- a/src/wp-admin/media.php
+++ b/src/wp-admin/media.php
@@ -126,7 +126,7 @@ switch ( $action ) {
 		<?php
 		if ( current_user_can( 'upload_files' ) ) {
 			?>
-	<a href="media-new.php" class="page-title-action"><?php echo esc_html_x( 'Add New', 'file' ); ?></a>
+	<a href="media-new.php" class="page-title-action"><?php esc_html_e( 'Add New Media' ); ?></a>
 <?php } ?>
 
 	<hr class="wp-header-end">
diff --git a/src/wp-admin/menu.php b/src/wp-admin/menu.php
index 7aec19663d..864f2ae8d5 100644
--- a/src/wp-admin/menu.php
+++ b/src/wp-admin/menu.php
@@ -65,7 +65,7 @@ $menu[4] = array( '', 'read', 'separator1', '', 'wp-menu-separator' );
 $menu[10]                     = array( __( 'Media' ), 'upload_files', 'upload.php', '', 'menu-top menu-icon-media', 'menu-media', 'dashicons-admin-media' );
 	$submenu['upload.php'][5] = array( __( 'Library' ), 'upload_files', 'upload.php' );
 	/* translators: Add new file. */
-	$submenu['upload.php'][10] = array( _x( 'Add New', 'file' ), 'upload_files', 'media-new.php' );
+	$submenu['upload.php'][10] = array( __( 'Add New Media' ), 'upload_files', 'media-new.php' );
 	$i                         = 15;
 foreach ( get_taxonomies_for_attachments( 'objects' ) as $tax ) {
 	if ( ! $tax->show_ui || ! $tax->show_in_menu ) {
@@ -79,7 +79,7 @@ foreach ( get_taxonomies_for_attachments( 'objects' ) as $tax ) {
 $menu[15]                           = array( __( 'Links' ), 'manage_links', 'link-manager.php', '', 'menu-top menu-icon-links', 'menu-links', 'dashicons-admin-links' );
 	$submenu['link-manager.php'][5] = array( _x( 'All Links', 'admin menu' ), 'manage_links', 'link-manager.php' );
 	/* translators: Add new links. */
-	$submenu['link-manager.php'][10] = array( _x( 'Add New', 'link' ), 'manage_links', 'link-add.php' );
+	$submenu['link-manager.php'][10] = array( __( 'Add New Link' ), 'manage_links', 'link-add.php' );
 	$submenu['link-manager.php'][15] = array( __( 'Link Categories' ), 'manage_categories', 'edit-tags.php?taxonomy=link_category' );
 
 // $menu[20] = Pages
@@ -242,7 +242,7 @@ $submenu['plugins.php'][5] = array( __( 'Installed Plugins' ), 'activate_plugins
 
 if ( ! is_multisite() ) {
 	/* translators: Add new plugin. */
-	$submenu['plugins.php'][10] = array( _x( 'Add New', 'plugin' ), 'install_plugins', 'plugin-install.php' );
+	$submenu['plugins.php'][10] = array( __( 'Add New Plugin' ), 'install_plugins', 'plugin-install.php' );
 	$submenu['plugins.php'][15] = array( __( 'Plugin Editor' ), 'edit_plugins', 'plugin-editor.php' );
 }
 
@@ -258,9 +258,9 @@ if ( current_user_can( 'list_users' ) ) {
 	$_wp_real_parent_file['profile.php'] = 'users.php'; // Back-compat for plugins adding submenus to profile.php.
 	$submenu['users.php'][5]             = array( __( 'All Users' ), 'list_users', 'users.php' );
 	if ( current_user_can( 'create_users' ) ) {
-		$submenu['users.php'][10] = array( _x( 'Add New', 'user' ), 'create_users', 'user-new.php' );
+		$submenu['users.php'][10] = array( __( 'Add New User' ), 'create_users', 'user-new.php' );
 	} elseif ( is_multisite() ) {
-		$submenu['users.php'][10] = array( _x( 'Add New', 'user' ), 'promote_users', 'user-new.php' );
+		$submenu['users.php'][10] = array( __( 'Add New User' ), 'promote_users', 'user-new.php' );
 	}
 
 	$submenu['users.php'][15] = array( __( 'Your Profile' ), 'read', 'profile.php' );
diff --git a/src/wp-admin/my-sites.php b/src/wp-admin/my-sites.php
index 0d925b4184..1f2e9a8199 100644
--- a/src/wp-admin/my-sites.php
+++ b/src/wp-admin/my-sites.php
@@ -69,7 +69,7 @@ echo esc_html( $title );
 if ( in_array( get_site_option( 'registration' ), array( 'all', 'blog' ) ) ) {
 	/** This filter is documented in wp-login.php */
 	$sign_up_url = apply_filters( 'wp_signup_location', network_site_url( 'wp-signup.php' ) );
-	printf( ' <a href="%s" class="page-title-action">%s</a>', esc_url( $sign_up_url ), esc_html_x( 'Add New', 'site' ) );
+	printf( ' <a href="%s" class="page-title-action">%s</a>', esc_url( $sign_up_url ), esc_html__( 'Add New Site' ) );
 }
 
 if ( empty( $blogs ) ) :
diff --git a/src/wp-admin/network/menu.php b/src/wp-admin/network/menu.php
index 03a2edf954..cd1bc91e51 100644
--- a/src/wp-admin/network/menu.php
+++ b/src/wp-admin/network/menu.php
@@ -50,11 +50,11 @@ $menu[4] = array( '', 'read', 'separator1', '', 'wp-menu-separator' );
 /* translators: Sites menu item. */
 $menu[5]                  = array( __( 'Sites' ), 'manage_sites', 'sites.php', '', 'menu-top menu-icon-site', 'menu-site', 'dashicons-admin-multisite' );
 $submenu['sites.php'][5]  = array( __( 'All Sites' ), 'manage_sites', 'sites.php' );
-$submenu['sites.php'][10] = array( _x( 'Add New', 'site' ), 'create_sites', 'site-new.php' );
+$submenu['sites.php'][10] = array( __( 'Add New Site' ), 'create_sites', 'site-new.php' );
 
 $menu[10]                 = array( __( 'Users' ), 'manage_network_users', 'users.php', '', 'menu-top menu-icon-users', 'menu-users', 'dashicons-admin-users' );
 $submenu['users.php'][5]  = array( __( 'All Users' ), 'manage_network_users', 'users.php' );
-$submenu['users.php'][10] = array( _x( 'Add New', 'user' ), 'create_users', 'user-new.php' );
+$submenu['users.php'][10] = array( __( 'Add New User' ), 'create_users', 'user-new.php' );
 
 if ( current_user_can( 'update_themes' ) && $update_data['counts']['themes'] ) {
 	$menu[15] = array(
@@ -78,7 +78,7 @@ if ( current_user_can( 'update_themes' ) && $update_data['counts']['themes'] ) {
 	$menu[15] = array( __( 'Themes' ), 'manage_network_themes', 'themes.php', '', 'menu-top menu-icon-appearance', 'menu-appearance', 'dashicons-admin-appearance' );
 }
 $submenu['themes.php'][5]  = array( __( 'Installed Themes' ), 'manage_network_themes', 'themes.php' );
-$submenu['themes.php'][10] = array( _x( 'Add New', 'theme' ), 'install_themes', 'theme-install.php' );
+$submenu['themes.php'][10] = array( __( 'Add New Theme' ), 'install_themes', 'theme-install.php' );
 $submenu['themes.php'][15] = array( __( 'Theme Editor' ), 'edit_themes', 'theme-editor.php' );
 
 if ( current_user_can( 'update_plugins' ) && $update_data['counts']['plugins'] ) {
@@ -103,7 +103,7 @@ if ( current_user_can( 'update_plugins' ) && $update_data['counts']['plugins'] )
 	$menu[20] = array( __( 'Plugins' ), 'manage_network_plugins', 'plugins.php', '', 'menu-top menu-icon-plugins', 'menu-plugins', 'dashicons-admin-plugins' );
 }
 $submenu['plugins.php'][5]  = array( __( 'Installed Plugins' ), 'manage_network_plugins', 'plugins.php' );
-$submenu['plugins.php'][10] = array( _x( 'Add New', 'plugin' ), 'install_plugins', 'plugin-install.php' );
+$submenu['plugins.php'][10] = array( __( 'Add New Plugin' ), 'install_plugins', 'plugin-install.php' );
 $submenu['plugins.php'][15] = array( __( 'Plugin Editor' ), 'edit_plugins', 'plugin-editor.php' );
 
 $menu[25] = array( __( 'Settings' ), 'manage_network_options', 'settings.php', '', 'menu-top menu-icon-settings', 'menu-settings', 'dashicons-admin-settings' );
diff --git a/src/wp-admin/network/settings.php b/src/wp-admin/network/settings.php
index c100a665f3..a2adf051f9 100644
--- a/src/wp-admin/network/settings.php
+++ b/src/wp-admin/network/settings.php
@@ -235,7 +235,7 @@ if ( isset( $_GET['updated'] ) ) {
 			<tr id="addnewusers">
 				<th scope="row"><?php _e( 'Add New Users' ); ?></th>
 				<td>
-					<label><input name="add_new_users" type="checkbox" id="add_new_users" value="1"<?php checked( get_site_option( 'add_new_users' ) ); ?> /> <?php _e( 'Allow site administrators to add new users to their site via the "Users &rarr; Add New" page' ); ?></label>
+					<label><input name="add_new_users" type="checkbox" id="add_new_users" value="1"<?php checked( get_site_option( 'add_new_users' ) ); ?> /> <?php _e( 'Allow site administrators to add new users to their site via the "Users &rarr; Add New User" page' ); ?></label>
 				</td>
 			</tr>
 
diff --git a/src/wp-admin/network/sites.php b/src/wp-admin/network/sites.php
index 554e260509..8401b1f4bb 100644
--- a/src/wp-admin/network/sites.php
+++ b/src/wp-admin/network/sites.php
@@ -361,7 +361,7 @@ require_once( ABSPATH . 'wp-admin/admin-header.php' );
 <h1 class="wp-heading-inline"><?php _e( 'Sites' ); ?></h1>
 
 <?php if ( current_user_can( 'create_sites' ) ) : ?>
-	<a href="<?php echo network_admin_url( 'site-new.php' ); ?>" class="page-title-action"><?php echo esc_html_x( 'Add New', 'site' ); ?></a>
+	<a href="<?php echo network_admin_url( 'site-new.php' ); ?>" class="page-title-action"><?php esc_html_e( 'Add New Site' ); ?></a>
 <?php endif; ?>
 
 <?php
diff --git a/src/wp-admin/network/themes.php b/src/wp-admin/network/themes.php
index f7711f034d..c3f40fa3c6 100644
--- a/src/wp-admin/network/themes.php
+++ b/src/wp-admin/network/themes.php
@@ -269,7 +269,7 @@ require_once( ABSPATH . 'wp-admin/admin-header.php' );
 <h1 class="wp-heading-inline"><?php echo esc_html( $title ); ?></h1>
 
 <?php if ( current_user_can( 'install_themes' ) ) : ?>
-	<a href="theme-install.php" class="page-title-action"><?php echo esc_html_x( 'Add New', 'theme' ); ?></a>
+	<a href="theme-install.php" class="page-title-action"><?php esc_html_e( 'Add New Theme', 'theme' ); ?></a>
 <?php endif; ?>
 
 <?php
diff --git a/src/wp-admin/network/users.php b/src/wp-admin/network/users.php
index 9c5bcc0ca4..e7795475eb 100644
--- a/src/wp-admin/network/users.php
+++ b/src/wp-admin/network/users.php
@@ -271,7 +271,7 @@ if ( isset( $_REQUEST['updated'] ) && $_REQUEST['updated'] == 'true' && ! empty(
 	<?php
 	if ( current_user_can( 'create_users' ) ) :
 		?>
-		<a href="<?php echo network_admin_url( 'user-new.php' ); ?>" class="page-title-action"><?php echo esc_html_x( 'Add New', 'user' ); ?></a>
+		<a href="<?php echo network_admin_url( 'user-new.php' ); ?>" class="page-title-action"><?php esc_html_e( 'Add New User' ); ?></a>
 							<?php
 	endif;
 
diff --git a/src/wp-admin/plugins.php b/src/wp-admin/plugins.php
index eb80edcd4b..edf864671b 100644
--- a/src/wp-admin/plugins.php
+++ b/src/wp-admin/plugins.php
@@ -442,7 +442,7 @@ get_current_screen()->add_help_tab(
 				'<p>' . __( 'The search for installed plugins will search for terms in their name, description, or author.' ) . ' <span id="live-search-desc" class="hide-if-no-js">' . __( 'The search results will be updated as you type.' ) . '</span></p>' .
 				'<p>' . sprintf(
 					/* translators: %s: WordPress Plugin Directory URL. */
-					__( 'If you would like to see more plugins to choose from, click on the &#8220;Add New&#8221; button and you will be able to browse or search for additional plugins from the <a href="%s">WordPress Plugin Directory</a>. Plugins in the WordPress Plugin Directory are designed and developed by third parties, and are compatible with the license WordPress uses. Oh, and they&#8217;re free!' ),
+					__( 'If you would like to see more plugins to choose from, click on the &#8220;Add New Plugin&#8221; button and you will be able to browse or search for additional plugins from the <a href="%s">WordPress Plugin Directory</a>. Plugins in the WordPress Plugin Directory are designed and developed by third parties, and are compatible with the license WordPress uses. Oh, and they&#8217;re free!' ),
 					__( 'https://wordpress.org/plugins/' )
 				) . '</p>',
 	)
@@ -590,7 +590,7 @@ echo esc_html( $title );
 <?php
 if ( ( ! is_multisite() || is_network_admin() ) && current_user_can( 'install_plugins' ) ) {
 	?>
-	<a href="<?php echo self_admin_url( 'plugin-install.php' ); ?>" class="page-title-action"><?php echo esc_html_x( 'Add New', 'plugin' ); ?></a>
+	<a href="<?php echo self_admin_url( 'plugin-install.php' ); ?>" class="page-title-action"><?php esc_html_e( 'Add New Plugin', 'plugin' ); ?></a>
 	<?php
 }
 
diff --git a/src/wp-admin/themes.php b/src/wp-admin/themes.php
index 082819611b..6bdb9c0d92 100644
--- a/src/wp-admin/themes.php
+++ b/src/wp-admin/themes.php
@@ -191,7 +191,7 @@ require_once( ABSPATH . 'wp-admin/admin-header.php' );
 	</h1>
 
 	<?php if ( ! is_multisite() && current_user_can( 'install_themes' ) ) : ?>
-		<a href="<?php echo admin_url( 'theme-install.php' ); ?>" class="hide-if-no-js page-title-action"><?php echo esc_html_x( 'Add New', 'Add new theme' ); ?></a>
+		<a href="<?php echo admin_url( 'theme-install.php' ); ?>" class="hide-if-no-js page-title-action"><?php esc_html_e( 'Add New Theme' ); ?></a>
 	<?php endif; ?>
 
 	<form class="search-form"></form>
diff --git a/src/wp-admin/upload.php b/src/wp-admin/upload.php
index f399eaf446..9aa1d185f8 100644
--- a/src/wp-admin/upload.php
+++ b/src/wp-admin/upload.php
@@ -87,7 +87,7 @@ if ( 'grid' === $mode ) {
 		<?php
 		if ( current_user_can( 'upload_files' ) ) {
 			?>
-			<a href="<?php echo admin_url( 'media-new.php' ); ?>" class="page-title-action aria-button-if-js"><?php echo esc_html_x( 'Add New', 'file' ); ?></a>
+			<a href="<?php echo admin_url( 'media-new.php' ); ?>" class="page-title-action aria-button-if-js"><?php esc_html_e( 'Add New Media' ); ?></a>
 								<?php
 		}
 		?>
@@ -268,7 +268,7 @@ require_once( ABSPATH . 'wp-admin/admin-header.php' );
 <?php
 if ( current_user_can( 'upload_files' ) ) {
 	?>
-	<a href="<?php echo admin_url( 'media-new.php' ); ?>" class="page-title-action"><?php echo esc_html_x( 'Add New', 'file' ); ?></a>
+	<a href="<?php echo admin_url( 'media-new.php' ); ?>" class="page-title-action"><?php esc_html_e( 'Add New Media' ); ?></a>
 						<?php
 }
 
diff --git a/src/wp-admin/user-edit.php b/src/wp-admin/user-edit.php
index 70f6ef1a3d..3d0f9d3dde 100644
--- a/src/wp-admin/user-edit.php
+++ b/src/wp-admin/user-edit.php
@@ -224,9 +224,9 @@ switch ( $action ) {
 		if ( ! IS_PROFILE_PAGE ) {
 			if ( current_user_can( 'create_users' ) ) {
 				?>
-		<a href="user-new.php" class="page-title-action"><?php echo esc_html_x( 'Add New', 'user' ); ?></a>
+		<a href="user-new.php" class="page-title-action"><?php esc_html_e( 'Add New User' ); ?></a>
 	<?php } elseif ( is_multisite() && current_user_can( 'promote_users' ) ) { ?>
-		<a href="user-new.php" class="page-title-action"><?php echo esc_html_x( 'Add Existing', 'user' ); ?></a>
+		<a href="user-new.php" class="page-title-action"><?php esc_html_e( 'Add Existing User' ); ?></a>
 				<?php
 	}
 		}
diff --git a/src/wp-admin/users.php b/src/wp-admin/users.php
index 884b143a15..a4e7bd8be9 100644
--- a/src/wp-admin/users.php
+++ b/src/wp-admin/users.php
@@ -561,9 +561,9 @@ switch ( $wp_list_table->current_action() ) {
 		<?php
 		if ( current_user_can( 'create_users' ) ) {
 			?>
-	<a href="<?php echo admin_url( 'user-new.php' ); ?>" class="page-title-action"><?php echo esc_html_x( 'Add New', 'user' ); ?></a>
+	<a href="<?php echo admin_url( 'user-new.php' ); ?>" class="page-title-action"><?php esc_html_e( 'Add New User' ); ?></a>
 <?php } elseif ( is_multisite() && current_user_can( 'promote_users' ) ) { ?>
-	<a href="<?php echo admin_url( 'user-new.php' ); ?>" class="page-title-action"><?php echo esc_html_x( 'Add Existing', 'user' ); ?></a>
+	<a href="<?php echo admin_url( 'user-new.php' ); ?>" class="page-title-action"><?php esc_html_e( 'Add Existing User' ); ?></a>
 			<?php
 }
 
diff --git a/src/wp-content/themes/twentyeleven/readme.txt b/src/wp-content/themes/twentyeleven/readme.txt
index 924c74598f..32c6b3712a 100644
--- a/src/wp-content/themes/twentyeleven/readme.txt
+++ b/src/wp-content/themes/twentyeleven/readme.txt
@@ -14,7 +14,7 @@ For more information about Twenty Eleven please go to https://codex.wordpress.or
 
 == Installation ==
 
-1. In your admin panel, go to Appearance -> Themes and click the 'Add New' button.
+1. In your admin panel, go to Appearance -> Themes and click the 'Add New Theme' button.
 2. Type in Twenty Eleven in the search form and press the 'Enter' key in your keyboard.
 3. Click on the 'Activate' button to use your new theme right away.
 4. Go to https://codex.wordpress.org/Twenty_Eleven for a guide to customize this theme.
diff --git a/src/wp-content/themes/twentyfifteen/readme.txt b/src/wp-content/themes/twentyfifteen/readme.txt
index cb3d3555db..dcfa39638d 100644
--- a/src/wp-content/themes/twentyfifteen/readme.txt
+++ b/src/wp-content/themes/twentyfifteen/readme.txt
@@ -22,7 +22,7 @@ For more information about Twenty Fifteen please go to https://wordpress.org/sup
 
 == Installation ==
 
-1. In your admin panel, go to Appearance -> Themes and click the 'Add New' button.
+1. In your admin panel, go to Appearance -> Themes and click the 'Add New Theme' button.
 2. Type in Twenty Fifteen in the search form and press the 'Enter' key on your keyboard.
 3. Click on the 'Activate' button to use your new theme right away.
 4. Go to https://wordpress.org/support/article/twenty-fifteen/ for a guide on how to customize this theme.
diff --git a/src/wp-content/themes/twentyfourteen/readme.txt b/src/wp-content/themes/twentyfourteen/readme.txt
index 3bbf5a34be..5973c58a7e 100644
--- a/src/wp-content/themes/twentyfourteen/readme.txt
+++ b/src/wp-content/themes/twentyfourteen/readme.txt
@@ -14,7 +14,7 @@ For more information about Twenty Fourteen please go to https://codex.wordpress.
 
 == Installation ==
 
-1. In your admin panel, go to Appearance -> Themes and click the 'Add New' button.
+1. In your admin panel, go to Appearance -> Themes and click the 'Add New Theme' button.
 2. Type in Twenty Fourteen in the search form and press the 'Enter' key in your keyboard.
 3. Click on the 'Activate' button to use your new theme right away.
 4. Go to https://codex.wordpress.org/Twenty_Fourteen for a guide to customize this theme.
diff --git a/src/wp-content/themes/twentynineteen/readme.txt b/src/wp-content/themes/twentynineteen/readme.txt
index 7436213081..5a5483ba3c 100644
--- a/src/wp-content/themes/twentynineteen/readme.txt
+++ b/src/wp-content/themes/twentynineteen/readme.txt
@@ -16,7 +16,7 @@ For more information about Twenty Nineteen please go to https://wordpress.org/su
 
 == Installation ==
 
-1. In your admin panel, go to Appearance -> Themes and click the 'Add New' button.
+1. In your admin panel, go to Appearance -> Themes and click the 'Add New Theme' button.
 2. Type in Twenty Nineteen in the search form and press the 'Enter' key on your keyboard.
 3. Click on the 'Activate' button to use your new theme right away.
 4. Go to https://wordpress.org/support/article/twenty-nineteen/ for a guide on how to customize this theme.
diff --git a/src/wp-content/themes/twentyseventeen/README.txt b/src/wp-content/themes/twentyseventeen/README.txt
index 5a67d3a7c2..fbf37168bd 100644
--- a/src/wp-content/themes/twentyseventeen/README.txt
+++ b/src/wp-content/themes/twentyseventeen/README.txt
@@ -14,7 +14,7 @@ For more information about Twenty Seventeen please go to https://wordpress.org/s
 
 == Installation ==
 
-1. In your admin panel, go to Appearance -> Themes and click the 'Add New' button.
+1. In your admin panel, go to Appearance -> Themes and click the 'Add New Theme' button.
 2. Type in Twenty Seventeen in the search form and press the 'Enter' key on your keyboard.
 3. Click on the 'Activate' button to use your new theme right away.
 4. Go to https://wordpress.org/support/article/twenty-seventeen/ for a guide on how to customize this theme.
diff --git a/src/wp-content/themes/twentyten/readme.txt b/src/wp-content/themes/twentyten/readme.txt
index ed6e25680b..69e7422b0d 100644
--- a/src/wp-content/themes/twentyten/readme.txt
+++ b/src/wp-content/themes/twentyten/readme.txt
@@ -13,7 +13,7 @@ For more information about Twenty Ten theme please go to https://codex.wordpress
 
 == Installation ==
 
-1. In your admin panel, go to Appearance -> Themes and click the 'Add New' button.
+1. In your admin panel, go to Appearance -> Themes and click the 'Add New Theme' button.
 2. Type in Twenty Ten in the search form and press the 'Enter' key in your keyboard.
 3. Click on the 'Activate' button to use your new theme right away.
 4. Go to https://codex.wordpress.org/Twenty_Ten for a guide to customize this theme.
diff --git a/src/wp-content/themes/twentythirteen/readme.txt b/src/wp-content/themes/twentythirteen/readme.txt
index 492b5a1c24..6fcb4ace04 100644
--- a/src/wp-content/themes/twentythirteen/readme.txt
+++ b/src/wp-content/themes/twentythirteen/readme.txt
@@ -13,7 +13,7 @@ For more information about Twenty Thirteen please go to https://codex.wordpress.
 
 == Installation ==
 
-1. In your admin panel, go to Appearance -> Themes and click the 'Add New' button.
+1. In your admin panel, go to Appearance -> Themes and click the 'Add New Theme' button.
 2. Type in Twenty Thirteen in the search form and press the 'Enter' key in your keyboard.
 3. Click on the 'Activate' button to use your new theme right away.
 4. Go to https://codex.wordpress.org/Twenty_Thirteen for a guide to customize this theme.
diff --git a/src/wp-content/themes/twentytwelve/readme.txt b/src/wp-content/themes/twentytwelve/readme.txt
index 8e088dbf27..fd46519758 100644
--- a/src/wp-content/themes/twentytwelve/readme.txt
+++ b/src/wp-content/themes/twentytwelve/readme.txt
@@ -13,7 +13,7 @@ For more information about Twenty Twelve please go to https://codex.wordpress.or
 
 == Installation ==
 
-1. In your admin panel, go to Appearance -> Themes and click the 'Add New' button.
+1. In your admin panel, go to Appearance -> Themes and click the 'Add New Theme' button.
 2. Type in Twenty Twelve in the search form and press the 'Enter' key in your keyboard.
 3. Click on the 'Activate' button to use your new theme right away.
 4. Go to https://codex.wordpress.org/Twenty_Twelve for a guide to customize this theme.
diff --git a/src/wp-includes/media-template.php b/src/wp-includes/media-template.php
index 978772d732..d7e3bf211c 100644
--- a/src/wp-includes/media-template.php
+++ b/src/wp-includes/media-template.php
@@ -223,7 +223,7 @@ function wp_print_media_templates() {
 		</div>
 	</script>
 
-	<?php // Template for the inline uploader, used for example in the Media Library admin page - Add New. ?>
+	<?php // Template for the inline uploader, used for example in the Media Library admin page - Add New Media. ?>
 	<script type="text/html" id="tmpl-uploader-inline">
 		<# var messageClass = data.message ? 'has-upload-message' : 'no-upload-message'; #>
 		<# if ( data.canClose ) { #>
diff --git a/src/wp-includes/post.php b/src/wp-includes/post.php
index 387ef2b951..3831599b87 100644
--- a/src/wp-includes/post.php
+++ b/src/wp-includes/post.php
@@ -71,7 +71,7 @@ function create_initial_post_types() {
 			'labels'                => array(
 				'name'           => _x( 'Media', 'post type general name' ),
 				'name_admin_bar' => _x( 'Media', 'add new from admin bar' ),
-				'add_new'        => _x( 'Add New', 'add new media' ),
+				'add_new'        => __( 'Add New Media' ),
 				'edit_item'      => __( 'Edit Media' ),
 				'view_item'      => __( 'View Attachment Page' ),
 				'attributes'     => __( 'Attachment Attributes' ),
@@ -1687,7 +1687,7 @@ function get_post_type_labels( $post_type_object ) {
 	$nohier_vs_hier_defaults              = array(
 		'name'                     => array( _x( 'Posts', 'post type general name' ), _x( 'Pages', 'post type general name' ) ),
 		'singular_name'            => array( _x( 'Post', 'post type singular name' ), _x( 'Page', 'post type singular name' ) ),
-		'add_new'                  => array( _x( 'Add New', 'post' ), _x( 'Add New', 'page' ) ),
+		'add_new'                  => array( __( 'Add New Post' ), __( 'Add New Page' ) ),
 		'add_new_item'             => array( __( 'Add New Post' ), __( 'Add New Page' ) ),
 		'edit_item'                => array( __( 'Edit Post' ), __( 'Edit Page' ) ),
 		'new_item'                 => array( __( 'New Post' ), __( 'New Page' ) ),
