Necessary or necessity may refer to: Need. An action somebody may feel they must do; An important task or essential thing to do at a particular time or by a ...
Logic. (of a proposition) such that a denial of it involves a self-contradiction. (of an inference or argument) such that its conclusion cannot be false if its supporting ...
so important that you must do it or have it : absolutely needed. : unable to be changed or avoided. Take a 2-minute break to test your vocabulary. » ...
Needed to be done, achieved, or present; essential:. Meaning, pronunciation and example sentences, English to English reference content.