The term 'supermarket feature' can be broken down into four parts: DELI (4 letters), AISLE (5 letters), CHECKOUTAISLE (13 letters), and CHECKOUTCOUNTER (15 letters). A deli is a section of a supermarket that sells prepared foods such as sandwiches, salads, and other ready-to-eat items. An AISLE is a long passageway between sections of shelves in a store. A checkout AISLE is a section of the store where customers can pay for their purchases. Finally, a checkout counter is a desk or counter where customers can pay for their items. All of these features are common in supermarkets and are essential components of the shopping experience.