Meaning of “magnet” - Learner’s Dictionary

magnet

noun uk us /ˈmæɡnət/

[ C ] an iron object that makes pieces of iron or steel (= metal made with iron) move towards it

be a magnet for sb

If a place or event is a magnet for people, a lot of people go there:

Airports are a magnet for thieves.

(Definition of “magnet” from the Cambridge Learner’s Dictionary © Cambridge University Press)