diff --git a/src/wp-admin/css/common.css b/src/wp-admin/css/common.css
index 572af3a1d8..6e6504ad46 100644
--- a/src/wp-admin/css/common.css
+++ b/src/wp-admin/css/common.css
@@ -2922,7 +2922,7 @@ div.action-links {
 	#section-holder {
 		position: static;
 		margin: 0;
-		padding-bottom: 70px; /* reset from the two column height fix, plus accomodate footer */
+		padding-bottom: 70px; /* reset from the two column height fix, plus accommodate footer */
 	}
 
 	#plugin-information .fyi h3,
diff --git a/src/wp-admin/includes/export.php b/src/wp-admin/includes/export.php
index 21bb482787..f321a56eec 100644
--- a/src/wp-admin/includes/export.php
+++ b/src/wp-admin/includes/export.php
@@ -353,7 +353,7 @@ function export_wp( $args = array() ) {
 	}
 
 	/**
-	 * Ouput all navigation menu terms
+	 * Output all navigation menu terms
 	 *
 	 * @since 3.1.0
 	 */
diff --git a/src/wp-admin/includes/misc.php b/src/wp-admin/includes/misc.php
index 0cc57cbc9b..679b9ac5d6 100644
--- a/src/wp-admin/includes/misc.php
+++ b/src/wp-admin/includes/misc.php
@@ -133,7 +133,7 @@ function insert_with_markers( $filename, $marker, $insertion ) {
 		$lines[] = rtrim( fgets( $fp ), "\r\n" );
 	}
 
-	// Split out the existing file into the preceeding lines, and those that appear after the marker
+	// Split out the existing file into the preceding lines, and those that appear after the marker
 	$pre_lines = $post_lines = $existing_lines = array();
 	$found_marker = $found_end_marker = false;
 	foreach ( $lines as $line ) {
diff --git a/src/wp-admin/includes/upgrade.php b/src/wp-admin/includes/upgrade.php
index f37fcccf9d..8699a08b44 100644
--- a/src/wp-admin/includes/upgrade.php
+++ b/src/wp-admin/includes/upgrade.php
@@ -2821,7 +2821,7 @@ function pre_schema_upgrade() {
 	// Multisite schema upgrades.
 	if ( $wp_current_db_version < 25448 && is_multisite() && wp_should_upgrade_global_tables() ) {
 
-		// Upgrade verions prior to 3.7
+		// Upgrade versions prior to 3.7
 		if ( $wp_current_db_version < 25179 ) {
 			// New primary key for signups.
 			$wpdb->query( "ALTER TABLE $wpdb->signups ADD signup_id BIGINT(20) NOT NULL AUTO_INCREMENT PRIMARY KEY FIRST" );
diff --git a/src/wp-admin/js/editor-expand.js b/src/wp-admin/js/editor-expand.js
index aaf34b0bb1..cc3aac4fc5 100644
--- a/src/wp-admin/js/editor-expand.js
+++ b/src/wp-admin/js/editor-expand.js
@@ -318,7 +318,7 @@
 				topHeight = heights.textTopHeight;
 			}
 
-			// TinyMCE still intializing.
+			// TinyMCE still initializing.
 			if ( ! visual && ! $top.length ) {
 				return;
 			}
diff --git a/src/wp-admin/js/post.js b/src/wp-admin/js/post.js
index dfbc6dbb13..662c62bff1 100644
--- a/src/wp-admin/js/post.js
+++ b/src/wp-admin/js/post.js
@@ -140,7 +140,7 @@ window.wp = window.wp || {};
 			/**
 			 * Handle server response
 			 *
-			 * @param {string} str Response, will be '0' when an error occured otherwise contains link to add Featured Image.
+			 * @param {string} str Response, will be '0' when an error occurred otherwise contains link to add Featured Image.
 			 */
 			function(str){
 			if ( str == '0' ) {