Piece is a common English word with multiple meanings:
1. A portion or part of something: "a piece of cake"
2. An artistic creation: "a beautiful piece of music"
3. A coin: "a 50-cent piece"
4. In chess: the figures used in the game
5. Slang for a firearm
6. A written composition: "a piece of writing"
7. In manufacturing: an individual item