n. One who or that which breaks anything, as a machine to crush ores, stones, and other hard substances.n. A violator or transgressor: as, a breaker of the law.n. A wave broken into foam against the shore, a sand-bank, or a rock near the surface: generally in the plural.n. [In this sense perhaps a corruption of Sp.barrica, a keg.] A small water-cask used in boats to supply the crew with water and for ballast.n. A trainer, as of horses of dogs.n.