Product tabs show on the single product page, right below the image gallery. Tab labels are “Description”, “Additional Information”, “Reviews” by default – but what if you wish to rename them into something more relevant to your users?
Here’s a simple PHP snippet you can copy/paste into your child theme’s functions.php file to immediately change the “Description” tab name – enjoy 🙂

Snippet (PHP): Rename Description Product Tab Name @ WooCommerce Single Product Page
/**
* @snippet Rename Description Product Tab Label @ WooCommerce Single Product
* @how-to Get CustomizeWoo.com FREE
* @sourcecode https://businessbloomer.com/?p=97724
* @author Rodolfo Melogli
* @compatible WooCommerce 3.5.3
* @donate $9 https://businessbloomer.com/bloomer-armada/
*/
add_filter( 'woocommerce_product_description_tab_title', 'bbloomer_rename_description_product_tab_label' );
function bbloomer_rename_description_product_tab_label() {
return 'New Name';
}