Necessary

Meanings

(usually with the definite article) A place to do the "necessary" business of urination and defecation: an outhouse or lavatory.
Required, essential, whether logically inescapable or needed in order to achieve a desired result or avoid some penalty.

Necessary: Look up necessary or necessity in Wiktionary, the free dictionary. Necessary or necessity may refer to: Need An action somebody may feel they must do An
Necessary Illusions: Necessary Illusions: Thought Control in Democratic Societies is a 1989 book by United States academic Noam Chomsky concerning political power using propaganda
Necessity and sufficiency: statements. For example, in the conditional statement: "If P then Q", Q is necessary for P, because the truth of Q is guaranteed by the truth of P. (Equivalently