to be in need of or require (something)

to be constrained or required to do something

We need to discuss this urgently

(chiefly in questions or with negatives) to be under necessity or obligation to do something

She need not decide straight away

Need you shout?

obligation or necessity

sufficient reason; grounds

There's no need to worry

(also in pl) something one requires

a physiological or psychological requirement relating to one's well-being

emotional needs

a condition in which support or help is required

deserted him in his hour of need

poverty; want