Meaning of “need” - Learner’s Dictionary

need

noun uk us /niːd/

B2 [ no plural ] something that is necessary to have or do:

There's an urgent need for more medical supplies.
[ + to do sth ] Is there any need to change the current system?
There's really no need for that sort of behaviour.
be in need of sth

B2 to need something:

My car's in desperate need of repair.

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