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lifespan - definition and synonyms

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noun [countable]     lifespan pronunciation in British English
Word Forms
  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.



a lifestyle focussing on simple pleasures such as comfort and cosiness in the home, and spending time with friends and family

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a form of location that involves the underwater detonation of a bomb which causes sound waves that are picked up by ships

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