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English definition of “break up”

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break up

verb uk phrasal verb with break   /breɪk/ (broke, broken) us  

(END RELATIONSHIP)

B1 If a marriage breaks up or two people in a romantic relationship break up, their marriage or their relationship ends: Jenny and George have broken up. She's just broken up with her boyfriend.
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(STOP CLASSES)

B1 UK When schools and colleges, or the teachers and students who go to them break up, their classes stop and the holidays start : We broke up for the holidays in June.

(STOP BEING HEARD)

If someone who is talking on a mobile phone is breaking up, their voice can no longer be heard clearly.
(Definition of break up phrasal verb, verb from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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