A biscuit is a small, round type of bread. A biscuit is delicious with butter, or you might prefer your biscuits with gravy.
Biscuits are a lot like rolls, and they often serve the same purpose by being side dishes or appetizers. Baking powder or soda is used to leaven biscuits, which are best served when warm and soft. A hard, stale biscuit isn’t very appealing. People often eat biscuits as a side dish with dinner, or smothered with gravy at breakfast.