necessity

US /nəˈses.ə.t̬i/
UK /nəˈses.ə.t̬i/
"necessity" picture
1.

the fact of being required or indispensable

:
Food and water are basic necessities for survival.
There's no necessity for you to come if you don't want to.
2.

a thing that is needed

:
Warm clothes are a necessity in cold climates.
For many, a car is no longer a luxury but a necessity.
3.

the circumstances that make something necessary

:
He was forced by necessity to take a second job.
Poverty often creates a necessity for difficult choices.