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

runtime

noun
 
/ˈrʌntaɪm/
 
/ˈrʌntaɪm/
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  1. [countable] the time that a film or DVD lasts
    • The film seems a lot shorter than its three-hour runtime.
  2. [uncountable, countable] (computing) the amount of time that a program takes to perform a task; the time when a program is performing a task
  3. [countable] (computing) a computer program that enables other computer programs to run inside it
perfectly
adverb
 
 
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