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English definition of “breakout”

breakout

noun [C] uk   /ˈbreɪk.aʊt/ us  
a violent escape, especially by a group, from prison: There has been a mass breakout from one of Germany's top security jails.Running away and escaping

breakout

adjective [before noun] uk   /ˈbreɪk.aʊt/ us  
used in connection with smaller groups that separate from a meeting to discuss a particular issue, before returning to the main meeting: a breakout session/meeting/room
(Definition of breakout from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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