From Longman Dictionary of Contemporary Englishbreakoutbreak‧out /ˈbreɪkaʊt/ noun [countable] ESCAPEan escape from a prison, especially one involving a lot of prisoners → break out at break1
Examples from the Corpus
breakout• So I opened the door and snapped on the lights, which made the place look like Stalag 17 during a breakout.• That stable situation is then made unstable: Somebody proposes a breakout.• Both countries have suffered prison violence, disorder and breakouts.• For decorations like fluting close grained hardwoods must be used, like box or pear, to avoid breakout and fluffy edges.• Note was taken that Ned had failed to advise the twelfth floor of Barley's drunken breakout after his return from Leningrad.• More than 20 died in a camp fire in 1992, and 50 police were injured during a mass breakout in 1996.• There was a mass breakout from a city center prison yesterday.• Had there been another mass breakout attempt in the night for which they were all to be punished?• Prison governors met today to discuss ways of preventing similar breakouts in the future.• This is especially important if your skin is prone to breakouts in the T-zone.From Longman Business Dictionarybreakoutbreak‧out /ˈbreɪkaʊt/ noun [countable]1MARKETINGa very successful product, especially one that comes after a company has produced some less successful onesThis might be the breakout product we’ve been looking for.2ACCOUNTINGmore detailed information referring to part of a set of figuresThe report gives detailed breakouts of wage changes.3a sudden increaseOil prices were on the edge of a major breakout, but turned down in late trading. 