A wheel with a grooved rim around which a cord passes. It acts to change the direction of a force applied to the cord and is chiefly used (typically in combination) to raise heavy weights
(on a bicycle) A wheel with a toothed rim around which the chain passes
A wheel or drum fixed on a shaft and turned by a belt, used esp. to increase speed or power
to hoist with a pulley (a device used for lifting weight) [v PULLEYED, PULLEYING, PULLEYS]