The crossword solution for the term 'Part of a Supermarket List' is 'ITEM', which is a four-letter word. An ITEM is an individual product or service that is available for purchase in a supermarket. Items are typically listed on a supermarket list, which is a document that contains all of the products and services that are available for purchase in a particular store. Supermarket lists are used by customers to plan their shopping trips and to compare prices between different stores.