diff --git a/wp-admin/edit-form-advanced.php b/wp-admin/edit-form-advanced.php
index 1dd2dcbfde..6fb9b21858 100644
--- a/wp-admin/edit-form-advanced.php
+++ b/wp-admin/edit-form-advanced.php
@@ -113,7 +113,7 @@ if ( post_type_supports($post_type, 'page-attributes') )
 	add_meta_box('pageparentdiv', __('Attributes'), 'page_attributes_meta_box', $post_type, 'side', 'core');
 
 if ( current_theme_supports( 'post-thumbnails', $post_type ) && post_type_supports($post_type, 'thumbnail') )
-	add_meta_box('postimagediv', sprintf( __('%s Thumbnail'), $post_type_object->singular_label ), 'post_thumbnail_meta_box', $post_type, 'side', 'low');
+	add_meta_box('postimagediv', __('Featured Image'), 'post_thumbnail_meta_box', $post_type, 'side', 'low');
 
 if ( post_type_supports($post_type, 'excerpt') )
 	add_meta_box('postexcerpt', __('Excerpt'), 'post_excerpt_meta_box', $post_type, 'normal', 'core');
diff --git a/wp-admin/includes/media.php b/wp-admin/includes/media.php
index f2094b8b51..78a010016a 100644
--- a/wp-admin/includes/media.php
+++ b/wp-admin/includes/media.php
@@ -1282,7 +1282,7 @@ function get_media_item( $attachment_id, $args = null ) {
 	elseif ( isset( $_POST ) && count( $_POST ) ) // Like for async-upload where $_GET['post_id'] isn't set
 		$calling_post_id = $post->post_parent;
 	if ( 'image' == $type && $calling_post_id && current_theme_supports( 'post-thumbnails', get_post_type( $calling_post_id ) ) && get_post_thumbnail_id( $calling_post_id ) != $attachment_id )
-		$thumbnail = "<a class='wp-post-thumbnail' id='wp-post-thumbnail-" . $attachment_id . "' href='#' onclick='WPSetAsThumbnail(\"$attachment_id\");return false;'>" . esc_html__( "Use as thumbnail" ) . "</a>";
+		$thumbnail = "<a class='wp-post-thumbnail' id='wp-post-thumbnail-" . $attachment_id . "' href='#' onclick='WPSetAsThumbnail(\"$attachment_id\");return false;'>" . esc_html__( "Use as featured image" ) . "</a>";
 
 	if ( ( $send || $thumbnail || $delete ) && !isset( $form_fields['buttons'] ) )
 		$form_fields['buttons'] = array( 'tr' => "\t\t<tr class='submit'><td></td><td class='savesend'>$send $thumbnail $delete</td></tr>\n" );
diff --git a/wp-admin/includes/post.php b/wp-admin/includes/post.php
index 58b3593e80..06bdabd53c 100644
--- a/wp-admin/includes/post.php
+++ b/wp-admin/includes/post.php
@@ -1143,7 +1143,7 @@ function get_sample_permalink_html( $id, $new_title = null, $new_slug = null ) {
  */
 function _wp_post_thumbnail_html( $thumbnail_id = NULL ) {
 	global $content_width, $_wp_additional_image_sizes;
-	$content = '<p class="hide-if-no-js"><a href="#" id="set-post-thumbnail" onclick="jQuery(\'#add_image\').click();return false;">' . esc_html__( 'Set thumbnail' ) . '</a></p>';
+	$content = '<p class="hide-if-no-js"><a href="#" id="set-post-thumbnail" onclick="jQuery(\'#add_image\').click();return false;">' . esc_html__( 'Set featured image' ) . '</a></p>';
 
 	if ( $thumbnail_id && get_post( $thumbnail_id ) ) {
 		$old_content_width = $content_width;
@@ -1154,7 +1154,7 @@ function _wp_post_thumbnail_html( $thumbnail_id = NULL ) {
 			$thumbnail_html = wp_get_attachment_image( $thumbnail_id, 'post-thumbnail' );
 		if ( !empty( $thumbnail_html ) ) {
 			$content = '<a href="#" id="set-post-thumbnail" onclick="jQuery(\'#add_image\').click();return false;">' . $thumbnail_html . '</a>';
-			$content .= '<p class="hide-if-no-js"><a href="#" id="remove-post-thumbnail" onclick="WPRemoveThumbnail();return false;">' . esc_html__( 'Remove thumbnail' ) . '</a></p>';
+			$content .= '<p class="hide-if-no-js"><a href="#" id="remove-post-thumbnail" onclick="WPRemoveThumbnail();return false;">' . esc_html__( 'Remove featured image' ) . '</a></p>';
 		}
 		$content_width = $old_content_width;
 	}
diff --git a/wp-includes/script-loader.php b/wp-includes/script-loader.php
index 05e5def712..3bb8110676 100644
--- a/wp-includes/script-loader.php
+++ b/wp-includes/script-loader.php
@@ -391,7 +391,7 @@ function wp_default_scripts( &$scripts ) {
 		$scripts->add( 'set-post-thumbnail', "/wp-admin/js/set-post-thumbnail$suffix.js", array( 'jquery' ), '20091210b' );
 		$scripts->add_data( 'set-post-thumbnail', 'group', 1 );
 		$scripts->localize( 'set-post-thumbnail', 'setPostThumbnailL10n', array(
-			'setThumbnail' => __( 'Use as thumbnail' ),
+			'setThumbnail' => __( 'Use as featured image' ),
 			'saving' => __( 'Saving...' ),
 			'error' => __( 'Could not set that as the thumbnail image. Try a different attachment.' ),
 			'done' => __( 'Done' )