Breaker

Break·er

Breaker

n.
  1. One who, or that which, breaks.
    I'll be no breaker of the law.
  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. (Naut.)
  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.
  5. a quarry worker who splits off blocks of stone.