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English definition of “assume”

assume

verb [T] (PRETEND TO HAVE)    /əˈsjuːm/ US  /-ˈsuːm/
to pretend to have a different name or be someone you are not, or to express a feeling falsely: Moving to a different town, he assumed a false name. During the investigation, two detectives assumed the identities of antiques dealers. He assumed a look of indifference but I knew how he felt.Faking and pretending
(Definition of assume verb (PRETEND TO HAVE) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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