say it: PUUL-ee
pulley is a noun meaning "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". It carries one recorded sense.
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
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for pulley come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.