SKU, or stock-keeping unit, is a term used in inventory management to identify and track individual products or items. Other synonyms used for SKU include product code, item number, part number, and inventory number. Each of these terms conveys the same meaning and serves the same purpose in inventory tracking. An SKU is a unique identifier assigned to a specific product, making it easier for businesses to track inventory levels, monitor sales, and reorder stock when necessary. By using synonyms for the term SKU, businesses can effectively convey the importance of inventory management and the need to track products efficiently.