(historical) A boy, or sometimes a man unable to do other mining work, employed to separate impurities from coal in the 19th and early 20th centuries.

(informal, nonstandard) One who breaks in; a robber or home invader.

plural of tie-breaker

(mechanical trades) A heavy-duty handle, typically long and with a nonratcheting head, that turns a socket to break loose nuts and bolts that are very tightly fastened.

plural of breaker-inner

plural of breaker bar

an electronic circuit that transfers a load to a different power source / Alternative spelling of tiebreaker

Alternative form of windbreaker

plural of Sabbath-breaker

an individual who breaks the Sabbath