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English definition of “go ahead”

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go ahead

verb uk phrasal verb with go   /ɡəʊ/ us    /ɡoʊ/ ( present participle going, past tense went, past participle gone)
B2 to start to do something: We've received permission to go ahead with the music festival in spite of opposition from local residents. I got so fed up with waiting for him to do it that I just went ahead and did it myself.B2 informal said to someone in order to give them permission to start to do something: "Could I ask you a rather personal question?" "Sure, go ahead." If an event goes ahead, it happens: The festival is now going ahead as planned.
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(Definition of go ahead phrasal verb, verb from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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