of necessity

require (something) because it is essential or very important rather than just desirable

I need help now

this shirt needs washing

they need to win tomorrow

I won't detain you for longer than I need

expressing necessity or obligation

need I say more?

all you need bring are sheets

I need not have worried

be necessary

lest you, even more than needs, embitter our parting

circumstances in which something is necessary; necessity

the basic human need for food

there's no need to cry

a thing that is wanted or required

his day-to-day needs

the state of requiring help, or of lacking basic necessities such as food

help us in our hour of need

children in need