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English definition of “assumption”

assumption

noun [C] (BELIEF)    /əˈsʌmp.ʃən/
C1 something that you accept as true without question or proof: People tend to make assumptions about you when you have a disability. These calculations are based on the assumption that prices will continue to rise.Guesses and assumptions
(Definition of assumption noun (BELIEF) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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