необхідно, необхідність

Приклади використання слова «necessary»:

It became necessary that Sakr-el-Bahr should lie to clear himself.
Are you, on your side, certain thateverything that is necessary has been said?
Afloat and in commission, to be had for the asking andthe necessary check.
Being three-quarters dog, food wasmore necessary to Kazan than to his mate.
He hadn't told her it wasn't necessary toattach the mask before clearing.