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English definition of “become”

become

verb [L] (BE)    /bɪˈkʌm/ (became, become)
A2 to start to be: I was becoming increasingly suspicious of his motives. It was becoming cold, so we lit the fire. After giving up smoking, he became fat and irritable. Margaret Thatcher became the UK's first woman prime minister in 1979. He has just become a father.Starting and beginningStarting again
(Definition of become verb (BE) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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