noun

• A device used to slow or stop the motion of a wheel, or of a vehicle, usually by friction (although other resistive forces, such as electromagnetic fields or aerodynamic drag, can also be used); also, the controls or apparatus used to engage such a mechanism such as the pedal in a car.
• A device used to slow or stop the motion of a wheel, or of a vehicle, usually by friction (although other resistive forces, such as electromagnetic fields or aerodynamic drag, can also be used); also, the controls or apparatus used to engage such a mechanism such as the pedal in a car.
• (military) An ancient engine of war analogous to the crossbow and ballista.
• (military) An ancient engine of war analogous to the crossbow and ballista.

verb

• (intransitive) To operate a brake or brakes.
  "Auxiliaries and ancillaries are comprehensive, and include a Westinghouse motor-driven recriprocating compressor used for locomotive braking and general service air, two rotary exhauster sets for train brakes when hauling passenger or fitted freight trains, and an oil-fired train heating boiler."
• (intransitive) To be stopped or slowed (as if) by braking.

noun

• (agriculture) A large, heavy harrow for breaking clods of earth after ploughing; a drag.
• (textiles) A tool used for breaking flax or hemp.

verb

• (transitive) To bruise and crush; to knead.
  "The farmer’s son brakes the flax while mother brakes the bread dough"
• (transitive) To pulverise with a harrow.