jamiechong

When a WooCommerce product is on sale, a tag is placed on top of the Product Thumbnails. The default label for this tag is “Sale!”. 
This plugin allows you to customize the label and can even insert the price difference or percent difference. Examples:
<ul>
<li>Save 20%</li>
<li>20% off!</li>
<li>Save $5.00</li>
<li>$5.00 off!</li>
</ul>

Woocommerce Custom Sale Tag

Customize the sale tag that appears on WooCommerce product thumbnails when a product sale price is set lower than the retail price.

Vikash Kumar

Use of this plugin will:
<ol>
<li>Allow admin to re-write the labels of Admin Menus. </li>
<li>Allow Admin to hide any number of menus/submenus. </li>
<li>Also allows administrator to change the “Post” label. It will allow users to see “Article” instead of “post” in the admin panel.</li>
</ol>

New Admin Menus

Use of this plugin will change the labels in Admin Menus

Woocommerce Custom Sale Tag vs New Admin Menus