Breaker

·noun A small water cask.

II. Breaker ·noun One who, or that which, breaks.

III. Breaker ·noun A wave breaking into foam against the shore, or against a sand bank, or a rock or reef near the surface.

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