What is a supermarket?

A supermarket is the same as a grocery store. It is a big shop with a range of food, clothes, DVDs, technical items, homeware, bakeries, sometimes opticians, fresh meat and fish, toys, furniture, mobiles...

People mainly shop at supermarkets for a particular item such as e.g. a certain size kitchen utensil/fresh meat and fish/items which can't be bought at a local mini-store.