pulleys
A pulley is a device with wheels or grooves that help move things up or down, often using rope or chain. It's like a tool that makes heavy lifting easier.
Pulleys are really useful when you need to lift something heavy, like boxes or furniture. Imagine you're moving into a new apartment and you have a lot of stuff to carry upstairs. Instead of trying to lift everything by hand, you can use pulleys to make the job much simpler. For example, if there's a big box that you can't carry alone, you can attach a rope to it and then pull it up using a pulley system on the wall or ceiling. This way, one person can do all the lifting without getting tired easily.
noun
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).
verb
To raise or lift by means of a pulley.
Real examples of "pulleys" in context
