›used to refer to a substance or a group of things or ideas, etc without saying exactly what they are
şey, madde, nesne
There's some sticky stuff on the carpet.They sell bread and cakes and stuff like that.What sort of stuff are you interested in?Can I leave my stuff at your house?1767
know your stuffinformal›to know a lot about a subject, or to be very good at doing something
işini iyi bilmek; konusuna hâkim olmak
She's an excellent teacher - she really knows her stuff.1120