(nautical) Any material, usually rope or canvas, used to protect sails, rigging, etc., at points where they are exposed to friction.

(engineering, of a machine) Driven through twofold compound gearing, to increase the force or speed.

(engineering) A piece for receiving or communicating reciprocating motion from or to a cogwheel, consisting of a sector of a circular gear, or ring, having cogs on the periphery, or face.

A device for converting reciprocating motion to rotary motion, used in the first rotative beam engines.

With gears not engaged; idle. / Out of control; in disarray.

(slang) A speeding trucker.

plural of gearjammer

A change-speed gear in which the gears are changed by sliding endwise.

Alternative form of get one's ass in gear

simple past tense and past participle of geal