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assume - definition and synonyms

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verb [transitive]     assume pronunciation in American English
Word Forms
present tense
present participleassuming
past tenseassumed
past participleassumed
  1. 1
    to believe that something is true, even though no one has told you or even though you have no proof

    Everyone accepted she was telling the truth, although in fact this was quite a lot to assume.

    assume (that):

    I’m assuming everyone here has an e-mail address.

    I think we can safely assume that he is out of town.

    assume someone/something to be/do something:

    I have always assumed her to be British.

    1. a.
      to be based on the idea that something is true

      This forecast assumes there will be no recession.

      This score is assumed to represent the achievement of an average 7-year-old.

  2. 2
    formal to officially start a new job or position

    She has been invited to assume the role of mentor.

  3. 3
    to start to control something although no one has officially asked you to

    His first priority was assuming control of the army.

  4. 5
    to pretend to have a particular feeling or attitude

    Fay assumed an air of innocence.

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