n. One who, or that which, shifts or changes.n. One who plays tricks or practices artifice; a cozener.n. An assistant to the ship's cook in washing, steeping, and shifting the salt provisions.n. An arrangement for shifting a belt sidewise from one pulley to another.n. A wire for changing a loop from one needle to another, as in narrowing, etc.n. A component used by the rider to control the gearing mechanisms and select the desired gear ratio, usually connected to the derailleur by a mechanical actuation cable.