lifespan

noun

variants also life span
Definition of lifespannext
as in duration
the period during which something exists, lasts, or is in progress I saw no need to pay more for a better-built computer that would just grow obsolete before the end of its lifespan

Synonyms & Similar Words

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Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of lifespan Essentially, the brushless system reduces friction and extends the lifespan of the motor. — New Atlas, 20 Oct. 2026 That question motivated Clark to better understand aging among plants and animals and to look for hints to extend humans' lifespan. — Kyle Melnick The Washington Post, Arkansas Online, 18 Oct. 2026 Pryor and his wife operated Pizza 51 for 22 years, a major feat in an industry that sees businesses close often with much shorter lifespans. — Katelyn Umholtz, Kansas City Star, 17 Oct. 2026 Which dog breeds tend to live the longest If longevity is the priority, a handful of smaller breeds routinely post the longest lifespans, according to breed data compiled by Reader’s Digest. — Hanna Wickes, Miami Herald, 16 Oct. 2026 See All Example Sentences for lifespan
Recent Examples of Synonyms for lifespan
  1. duration
  2. life
  3. lifetime
  4. time
Noun
  • The duration of that onshore flow will be especially important, as several consecutive high-tide cycles could produce flooding.
    — Grant Gilmore, CBS News, 21 Oct. 2026
  • Both events revealed that the old models of long- and short-duration GRBs had holes in them.
    — Robin George Andrews, Scientific American, 20 Oct. 2026
Definition of duration
Noun
  • Believing her daughter’s life was on the line, Del Mastro followed the caller’s instructions for five hours.
    — Muskaan Arshad, Fortune, 24 Oct. 2026
  • Three of those defendants, in agreements, pleaded guilty to capital murder and were sentenced to life without parole.
    — Fort Worth Star-Telegram, Fort Worth Star-Telegram, 24 Oct. 2026
Definition of life
Noun
  • The American Cancer Society reports that 1 in 8 women will be diagnosed with breast cancer in their lifetime.
    — Noelle Lilley, CBS News, 22 Oct. 2026
  • Winning here is tantamount to a lifetime appointment; since 1964, just three people have held the seat Pelosi is vacating.
    — Los Angeles Times, Los Angeles Times, 21 Oct. 2026
Definition of lifetime
Noun
  • Burks personally prosecuted five capital murder death penalty cases during her time at the district attorney’s office.
    — Fort Worth Star-Telegram, Fort Worth Star-Telegram, 24 Oct. 2026
  • Playing a real game in Spectrum Center for the first time since trading away LaMelo Ball over the summer, this was Charlotte’s first chance since that controversial deal to show the home fans that the deal was a good one.
    — Scott Fowler, Charlotte Observer, 24 Oct. 2026
Definition of time

Browse Nearby Words

lifers
lifespan
life spans
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Cite this Entry

“Lifespan.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/lifespan. Accessed 28 Oct. 2026.

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