ne|ces|sa|ry1 W1S1 [ˈnesısəri US -seri] adj
[Date: 1300-1400; : Latin; Origin: necessarius, from necesse 'necessary', from ne- 'not' + cedere 'to give up']
1.) something that is necessary is what you need to have or need to do
The booklet provides all the necessary information about the college.
No further changes were considered necessary.
absolutely/really necessary
The police are advising motorists to travel only if their journey is absolutely necessary.
it is necessary (for sb) to do sth
It's not necessary to wear a tie.
The doctor says it may be necessary for me to have an operation.
make it necessary (for sb) to do sth
Falling profits made it necessary to restructure the business.
necessary for (doing) sth
A good diet is necessary for maintaining a healthy body.
if/when/where necessary
I'll stay up all night, if necessary, to get it finished.
2.) necessary connection/consequence etc
a connection, result etc that must exist and cannot be avoided
The closure of the factory was a necessary consequence of increased competition from abroad.
3.) a necessary evil
something bad or unpleasant that you have to accept in order to achieve what you want
Mr Hurst regarded work as a necessary evil.
necessary 2
necessary2 n
1.) necessaries [plural]
things such as food or basic clothes that you need in order to live
2.) do the necessary
BrE spoken to do what is necessary
Leave it to me - I'll do the necessary.

Dictionary of contemporary English. 2013.

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  • necessary — I (inescapable) adjective avoidless, certain, choiceless, compelling, constraining, decided, decreed, designated, destined, expected, fated, fateful, fixed, foreordained, imminent, impending, ineluctable, includible, inevitable, inexorable,… …   Law dictionary

  • Necessary — Nec es*sa*ry, a. [L. necessarius, from necesse unavoidable, necessary; of uncertain origin: cf. F. n[ e]cessaire.] 1. Such as must be; impossible to be otherwise; not to be avoided; inevitable. [1913 Webster] Death, a necessary end, Will come… …   The Collaborative International Dictionary of English

  • necessary — [nes′ə ser΄ē] adj. [ME < L necessarius < necesse, unavoidable, necessary < ne , not + cedere, to give way: see CEDE] 1. that cannot be dispensed with; essential; indispensable [the nutriments necessary to life] 2. resulting from… …   English World dictionary

  • Necessary — may refer to: Something that is a required condition for something else to be the case, see necessary and sufficient condition. A necessary truth, something that cannot fail to be true, see logical possibility. An important task or essential… …   Wikipedia

  • necessary — ► ADJECTIVE 1) required to be done, achieved, or present; needed. 2) that must be; inevitable: a necessary result. ► NOUN 1) (necessaries) the basic requirements of life, such as food and warmth. 2) (the necessary) informal the action, item, or… …   English terms dictionary

  • Necessary — Nec es*sa*ry, n.; pl. {Necessaries}. 1. A thing that is necessary or indispensable to some purpose; something that one can not do without; a requisite; an essential; used chiefly in the plural; as, the necessaries of life. [1913 Webster] 2. A… …   The Collaborative International Dictionary of English

  • necessary — [adj1] essential all important, basic, binding, bottom line*, cardinal, chief, compelling, compulsory, crucial, decisive, de rigueur*, elementary, exigent, expedient, fundamental, imperative, incumbent on, indispensable, mandatory, momentous,… …   New thesaurus

  • necessary — necessary/contingent truths …   Philosophy dictionary

  • necessary — 1 *needful, requisite, indispensable, essential Analogous words: compelling or compulsory, obliging or obligatory, constraining (see corresponding verbs at FORCE): important, significant, momentous (see corresponding nouns at IMPORTANCE):… …   New Dictionary of Synonyms

  • necessary — 1 adjective 1 something that is necessary is what you need to have or need to do; essential: I ll leave it to you to make all the necessary arrangements. (+ for): Food is necessary for life. | it is necessary (for sb) to do sth: It s not… …   Longman dictionary of contemporary English

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