foodstuff vs supermarket in Korean
식품vs슈퍼마켓

식품foodstuff
식품 means foodstuff or food products. It is used for things people eat or drink, especially in stores, on packages, and in simple official situations. In daily life, it often means food items in general, not one cooked dish.
When to use foodstuff
슈퍼마켓supermarket
슈퍼마켓 means “supermarket,” a large store that sells food, drinks, and household items. People use this word when talking about everyday shopping. You can hear it in sentences about buying groceries, going out with family, or stopping by a store after school or work.
When to use supermarketHow they differ
식품 means food products or grocery items. It is the thing you buy, not the place you shop.