(automotive) The wheels, suspension, steering, powertrain and usually the chassis of a motor vehicle.

(informal, derogatory) The lowest gear on a vehicle.

plural of granny gear

plural of landing gear

(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.

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

plural of clash gear

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