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necessity - definition and synonyms


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noun necessity pronunciation in British English /nəˈsesəti/
Word Forms
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  1. 1
    [uncountable] a process, thing, or action that is needed in a situation
    necessity for: the necessity for a strong diplomatic effort
    necessity of (doing) something: doubts about the necessity of the war
    necessity to do something: We both recognize the necessity to get this right.
    out of necessity (=because it is necessary): Women increasingly went out to work, usually out of economic necessity.
    1. a.
      [countable] [usually singular] something that is difficult or unpleasant but cannot be avoided
      Raising taxes has become a necessity.
  2. 2
    [countable] something that you must have in order to live, work, or do something
    basic necessities like milk and bread
    A car is a necessity in this town.
    the bare necessities (=the basic things that everyone needs): They lacked even the bare necessities of life.



a course of study which is much shorter than a university course and focuses on the skills you need for a job, especially computer-related skills

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an ancient Roman system of underfloor heating, used to heat houses with hot air; from the Latin 'hypocaustum'

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