what does pulley mean
pulley noun [C]. âº a âpiece of âequipment for âmoving âheavy âobjects up or down, consisting of a âsmall âwheel over which a ârope or âchain âattached to the âobject can be âeasily âraised or âlowered: The âblocks of âstone had to be âlifted into âposition with a âsystem of pulleys.