Breaker

Part of speech: noun (n.)

1. One who, or that which, breaks. I'll be no breaker of the law. Shak.

2. Specifically: A machine for breaking rocks, or for breaking coal at the mines; also, the building in which such a machine is placed.

3. A small water cask. Totten.

4. A wave breaking into foam against the shore, or against a sand bank, or a rock or reef near the surface. The breakers were right beneath her bows. Longfellow.