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Concise Oxford English Dictionary © 2008 Oxford University Press: necessary /ˈnesəsəri/ ▶adjective 1 required to be done, achieved, or present; needed. 2 inevitable: a necessary consequence . ■ Philosophy inevitably resulting from the nature of things, so that the contrary is impossible.
■ Philosophy (of an agent) having no independent volition.
▶noun 1 (necessaries ) the basic requirements of life, such as food and warmth. – origin ME : from L. necessarius , from necesse ‘be needful’.
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necessary ' also found in these Oxford entries:
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