Definition of downtime noun from the Oxford Advanced American Dictionary

     

    downtime

     noun
    noun
    NAmE//ˈdaʊntaɪm//
     
    [uncountable]
     
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  1. 1the time during which a machine, especially a computer, is not working compare uptime
  2. 2 the time when someone stops working and is able to relax Everyone needs a little downtime.
See the Oxford Advanced Learner's Dictionary entry: downtime