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English definition of “split up”

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split up

informal
verb uk phrasal verb with split   /splɪt/ ( present participle splitting, past tense and past participle split) us  
B1 If two people split up, they end their relationship or marriage: She split up with her boyfriend last week.
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(Definition of split up phrasal verb, verb from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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