powerfulpiece

noun
UK /ˈpaʊəfʊl piːs/
US /ˈpaʊərfəl piːs/

A powerful piece is a very strong part of something, like a big chess piece that can do a lot.

The queen is the most powerful piece on the chessboard.


OTHER MEANINGS

2. A part of a machine or tool that has a lot of strength or force.

The engine's powerful piece made the little car go very fast.

3. An important and strong section of a story, speech, or song.

The ending was the most powerful piece of the whole speech.

4. A strong and impressive work of art or writing.

That painting is a powerful piece that everyone stopped to look at.