As a Noun: 1. A device for lifting and lowering heavy objects. It consists of a wheel with a hollow rim which is fixed above the ground. You pass a rope over the rim, attach one end of the rope to the weight, and pull or gradually release the other end. English = pulley. 2. A machine with pulleys for lifting heavy things. English = hoist. As a Verb or Adjective: 1. To operate a pulley or hoist.