Looking for the meaning or definition of the word pulley? Here's what it means.
Noun
(engineering, countable) One of the simple machines; a sheave, a wheel with a groovedrim, 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).
Verb
(transitive) To raise or lift by means of a pulley.