necessary

US /ˈnes.ə.ser.i/
UK /ˈnes.ə.ser.i/
"necessary" picture
1.

required to be done, achieved, or present; essential

:
It is necessary to obtain a visa before traveling to that country.
A good night's sleep is necessary for your health.
1.

something that is necessary

:
We've done all the necessary.
Take only what is necessary.