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English definition of “downtime”

downtime

noun [U] uk   /ˈdaʊn.taɪm/ us  
the time during which a machine, especially a computer, is not working or is not able to be usedNot functioningComputer concepts informal time when you relax and do not do very much: We've had a busy weekend so I'm planning to have some downtime tomorrow.Time off workPassive and not working
(Definition of downtime from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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