diff --git a/includes/admin/class-wc-admin-welcome.php b/includes/admin/class-wc-admin-welcome.php
index 21e00b9eb8f..a9c6615e7cf 100644
--- a/includes/admin/class-wc-admin-welcome.php
+++ b/includes/admin/class-wc-admin-welcome.php
@@ -244,7 +244,7 @@ class WC_Admin_Welcome {
 				<div class="wc-feature feature-rest feature-section col three-col">
 					<div>
 						<h4><?php _e( 'Access your data from 3rd party applications', 'woocommerce' ); ?></h4>
-						<p><?php _e( 'Built on top of the WooCommerce API, and targetted directly at developers, the new REST API allows you to get data for <strong>Orders</strong>, <strong>Coupons</strong>, <strong>Customers</strong>, <strong>Products</strong> and <strong>Reports</strong> in both <code>XML</code> and <code>JSON</code> formats.', 'woocommerce' ); ?></p>
+						<p><?php _e( 'Built on top of the WooCommerce API, and targeted directly at developers, the new REST API allows you to get data for <strong>Orders</strong>, <strong>Coupons</strong>, <strong>Customers</strong>, <strong>Products</strong> and <strong>Reports</strong> in both <code>XML</code> and <code>JSON</code> formats.', 'woocommerce' ); ?></p>
 					</div>
 					<div class="icon"></div>
 					<div class="last-feature">
diff --git a/includes/admin/settings/class-wc-settings-tax.php b/includes/admin/settings/class-wc-settings-tax.php
index 12b80120ffc..53248b4b4d2 100644
--- a/includes/admin/settings/class-wc-settings-tax.php
+++ b/includes/admin/settings/class-wc-settings-tax.php
@@ -133,7 +133,7 @@ class WC_Settings_Tax extends WC_Settings_Page {
 
 			array(
 				'title' 		=> __( 'Additional Tax Classes', 'woocommerce' ),
-				'desc' 		=> __( 'List additonal tax classes below (1 per line). This is in addition to the default <code>Standard Rate</code>. Tax classes can be assigned to products.', 'woocommerce' ),
+				'desc' 		=> __( 'List additional tax classes below (1 per line). This is in addition to the default <code>Standard Rate</code>. Tax classes can be assigned to products.', 'woocommerce' ),
 				'id' 		=> 'woocommerce_tax_classes',
 				'css' 		=> 'width:100%; height: 65px;',
 				'type' 		=> 'textarea',
diff --git a/includes/class-wc-cart.php b/includes/class-wc-cart.php
index 6b0793a2c48..ccf97adee27 100644
--- a/includes/class-wc-cart.php
+++ b/includes/class-wc-cart.php
@@ -1814,7 +1814,7 @@ class WC_Cart {
 		}
 
  	/*-----------------------------------------------------------------------------------*/
-	/* Fees API to add additonal costs to orders */
+	/* Fees API to add additional costs to orders */
 	/*-----------------------------------------------------------------------------------*/
 
 		/**
diff --git a/includes/class-wc-coupon.php b/includes/class-wc-coupon.php
index 2c7c29932cd..cf5b042b82f 100644
--- a/includes/class-wc-coupon.php
+++ b/includes/class-wc-coupon.php
@@ -287,7 +287,7 @@ class WC_Coupon {
 				}
 			}
 
-			// Per user usage limit - check here if user is logged in (aginst user IDs)
+			// Per user usage limit - check here if user is logged in (against user IDs)
 			// Checked again for emails later on in WC_Cart::check_customer_coupons()
 			if ( $this->usage_limit_per_user > 0 && is_user_logged_in() ) {
 				$used_by     = get_post_meta( $this->id, '_used_by' );
diff --git a/includes/class-wc-order.php b/includes/class-wc-order.php
index f4701815299..bf5df5ca44f 100644
--- a/includes/class-wc-order.php
+++ b/includes/class-wc-order.php
@@ -1158,7 +1158,7 @@ class WC_Order {
 	/**
 	 * Gets any downloadable product file urls.
 	 *
-	 * @deprecated as of 2.1 get_item_downloads is prefered as downloads are more than just file urls
+	 * @deprecated as of 2.1 get_item_downloads is preferred as downloads are more than just file urls
 	 * @param int $product_id product identifier
 	 * @param int $variation_id variation identifier, or null
 	 * @param array $item the item
diff --git a/includes/gateways/paypal/class-wc-gateway-paypal.php b/includes/gateways/paypal/class-wc-gateway-paypal.php
index 680622ddf77..d659dc9a521 100644
--- a/includes/gateways/paypal/class-wc-gateway-paypal.php
+++ b/includes/gateways/paypal/class-wc-gateway-paypal.php
@@ -564,7 +564,7 @@ class WC_Gateway_Paypal extends WC_Payment_Gateway {
 			$this->log->add( 'paypal', 'Checking IPN response is valid via ' . $paypal_adr . '...' );
 		}
 
-		// Get recieved values from post data
+		// Get received values from post data
 		$validate_ipn = array( 'cmd' => '_notify-validate' );
 		$validate_ipn += stripslashes_deep( $ipn_response );