A supermarket is a self-service shop offering a wide variety of food and household products, organized into aisles. It is larger and has a wider selection than earlier grocery stores, but is smaller and more limited in the range of merchandise than a hypermarket or big-box market.

A larger full-service supermarket combined with a department store is sometimes known as a hypermarket. Other services may include those of banks, cafés, childcare centres/creches, insurance (and other financial services), Mobile Phone services, photo processing, video rentals, pharmacies and/or petrol stations. If the eatery in a supermarket is substantial enough, the facility may be called a "grocerant", a portmanteau of "grocery" and "restaurant".[1]