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English definition of “blow up”

blow up

verb uk phrasal verb with blow   /bləʊ/ us    /bloʊ/ (blew, blown)

(STORM)

When a storm blows up, it begins.Stormy weatherWind and winds

(ANGER)

informal to suddenly become very angry: My dad blew up (at me) when he saw the bill.Becoming angry and expressing anger
(Definition of blow up phrasal verb, verb from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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