lifespan - definition and synonyms

 
 
noun [countable] 

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/ˈlaɪfˌspæn/
singularlifespan
plurallifespans
  1. 1
    the length of time that a person or animal lives or is expected to live

    The natural lifespan of a pig is 10–12 years.

  2. 2
    the length of time that something continues to exist or to be good enough to use

    Most pop groups have a very short lifespan.