lifespan

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

Relevance

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 There's also the robot lifespan to consider; a March 12 SEC filing cited a four-year depreciation period for them. Rob Pegoraro, PC Magazine, 25 Mar. 2026 Longer lifespans, less linear careers, a rising cost of living, and tighter government budgets are redefining what retirement security even means. Chris Mahoney, Fortune, 25 Mar. 2026 Researchers have developed a hybrid AI model that significantly improves the accuracy of predicting lithium-ion battery lifespan. Neetika Walter, Interesting Engineering, 24 Mar. 2026 At the same time, repairs will be made to the north pier in Pinellas County that will extend the lifespan by 20 years, according to DeSantis. Carter Weinhofer, Miami Herald, 23 Mar. 2026 This difference between lifespan and health span is greatest in the US compared to 183 countries surveyed. Helen Dennis, Daily News, 22 Mar. 2026 To prolong their lifespan, plastic cutting boards can be put in the dishwasher for cleaning; wooden ones can be cleaned with a diluted bleach solution or disinfectant. The Washington Post, San Diego Union-Tribune, 21 Mar. 2026 Hummingbirds often have a very short lifespan; most do not live longer than a single year, and those who are lucky enough can live up to four years. Tiffany Acosta, AZCentral.com, 19 Mar. 2026 Since Tuck Everlasting was first published in 1975, the average American’s lifespan has increased from 72 to 80. Literary Hub, 18 Mar. 2026
Recent Examples of Synonyms for lifespan
Noun
  • New York — US stocks slid and the Dow closed in correction Friday as uncertainty about the duration of the war with Iran and nerves about energy inflation continued to weigh on markets.
    John Towfighi, CNN Money, 27 Mar. 2026
  • If those flights go well, NASA hopes to launch one, and possibly two, lunar landing missions in 2028 before beginning work to build a moon base near the lunar south pole for long-duration stays on the surface.
    William Harwood, CBS News, 27 Mar. 2026
Noun
  • Advice columnist Carolyn Hax takes your comments and questions most Fridays about life, family, relationships and more.
    Carolyn Hax, Washington Post, 27 Mar. 2026
  • Visitors can scan a QR code and see the players come to life.
    Rina Nakano, CBS News, 25 Mar. 2026
Noun
  • For the seniors, the trip marked a graduation, a family trip and a once-in-a-lifetime experience all in one.
    Ken Sugiura, AJC.com, 21 Mar. 2026
  • Some have been saving for years, considering it a once-in-a-lifetime experience.
    Orlando Sentinel Editorial Board, The Orlando Sentinel, 21 Mar. 2026
Noun
  • Questions and comments will be moderated, read, and answered as time allows.
    Carolyn Hax, Washington Post, 27 Mar. 2026
  • In that month, rates fell below 6% for the first time since 2022, according to Freddie Mac, which tracks rates weekly.
    Zach Halaschak, The Washington Examiner, 24 Mar. 2026

Browse Nearby Words

Cite this Entry

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

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster