Definition of duration noun from the Oxford Advanced Learner's Dictionary

  

duration

 noun
noun
BrE BrE//djuˈreɪʃn//
 
; NAmE NAmE//duˈreɪʃn//
 
[uncountable](formal)
 
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  • the length of time that something lasts or continues The school was used as a hospital for the duration of the war. a contract of three years’ duration
  • Word Origin late Middle English: via Old French from medieval Latin duratio(n-), from durare ‘to last’, from durus ‘hard’.Extra examples She stayed there for the duration of the journey. Taking antibiotics will shorten the duration of the illness. The next contract will be of shorter duration. The overall duration of the flight was 11 hours. This continued throughout the duration of their marriage. We took four trains, and the overall duration of the journey was 72 hours. the expected duration of the diseaseIdioms (informal) until the end of a particular situation
    See the Oxford Advanced American Dictionary entry: duration