Pulley (noun)

  1. A simple machine consisting of a wheel with a grooved rim in which a rope or cable runs, used for changing the direction of a force applied to the rope or cable or for changing the magnitude of the force.
  2. A wheel or drum with a grooved rim for carrying a rope or chain.

Origin:

From old french polie "pulley".

Examples:

  1. The pulley made it easier to lift the heavy object.
  2. The pulley system was used to hoist the sails on the ship.
  3. He fixed the pulley on the garage door.
  4. The pulley was used to lift the weight.
  5. The pulley helped to change the direction of the force applied to the rope.
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