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English definition of “clear up”

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clear up

informal
verb uk phrasal verb with clear   /klɪər/ us    /klɪr/
B2 If the weather clears up, the cloud and rain disappear: I hope it clears up in time for the picnic.
(Definition of clear up phrasal verb, verb from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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