Pully vs. Pulley: Decoding the Right Spelling

A simple machine consisting essentially of a wheel with a grooved rim in which a pulled rope or chain can run to change the direction of the pull, for example to lift a load.

A wheel turned by or driving a belt.

One of the simple machines; a sheave, a wheel with a grooved rim, in which a pulled rope or chain lifts an object (more useful when two or more pulleys are used together, as in a block and tackle arrangement, such that a small force moving through a greater distance can exert a larger force through a smaller distance).

(transitive) To raise or lift by means of a pulley.

A wheel with a broad rim, or grooved rim, for transmitting power from, or imparting power to, the different parts of machinery, or for changing the direction of motion, by means of a belt, cord, rope, or chain.

To raise or lift by means of a pulley.

A simple machine consisting of a wheel with a groove in which a rope can run to change the direction or point of application of a force applied to the rope