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English definition of “need”

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need

verb  /nid/ us  

need verb (MUST HAVE)

[T] to be necessary to have something, or to want something very much: To make pastry, you need flour, fat, and water. Do we need anything from the store? Will I be needed in the office tomorrow? I need you to advise me on what to wear. I need a rest. [T] infml If you say that you don’t need something, it can mean that you do not want it because it is causing you trouble: I don’t need all this arguing. [T] If you say that someone or something needs something, you can mean that the person or thing should have it or would benefit from having it: What you need is some hot soup to warm you up. My hair needs to be washed.

need verb (MUST DO)

( present tense needs or need) to have to take an action: [+ to infinitive] He needs to lose weight. [+ to infinitive] Before we make a decision, we need to consider our options. [+ to infinitive] I need to do some shopping on my way home. I don’t think we need ask him. Nothing need be done about this before next week. [+ to infinitive] As it turned out, I didn’t need to buy any extra material (= I did it, although I didn’t have to).

need

noun [U]  /nid/ us  

need noun [U] (SOMETHING YOU MUST HAVE)

something that you must or should have, or the lack of this: There’s a growing need for low-cost housing. Need can be a reason: [+ to infinitive] I don’t think there’s any need to worry. Need is also a feeling or state of greatly wanting something: [+ to infinitive] a desperate need to be loved We have no need for your sympathy. Need is also the state of being necessary: Help yourself to supplies as the need arises. [+ to infinitive] There’s no need to buy any more food.in need People who are in need do not have enough money or need some type of help: The money will go to those who are most in need.in need of Someone who is in need of something must or should have it: They’re in need of help.
(Definition of need from the Cambridge Academic Content Dictionary © Cambridge University Press)
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