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 For the current group of people reaching the age to begin receiving Social Security payments, Schneider said the average lifespan is 88. — Steve Sadin, Chicago Tribune, 7 Aug. 2026 Health and behavior across the entire lifespan contribute to a person’s risk of eventually developing dementia. — Kathleen Felton, Time, 7 Aug. 2026 Regular cleaning helps your AC work less hard, lowering energy use and extending its lifespan. — Abby Monteil, The Spruce, 6 Aug. 2026 Longevity Exercising two to three days a week can help increase your lifespan by reducing the risk of heart disease, type 2 diabetes, and certain types of cancer. — Angela Ryan Lee, Verywell Health, 6 Aug. 2026 See All Example Sentences for lifespan
Recent Examples of Synonyms for lifespan
  1. duration
  2. life
  3. lifetime
  4. time
Noun
  • In order to qualify for citizenship, Eugenie’s daughter needed to have one parent who has Portuguese citizenship or one parent who has met the legal residency duration requirement of five years at the time of the baby’s birth.
    — Meredith Kile, PEOPLE, 5 Aug. 2026
  • TikTok also puts the duration of the livestream at around 15 minutes, not the half hour widely reported.
    — Etan Vlessing, HollywoodReporter, 5 Aug. 2026
Definition of duration
Noun
  • Modi’s early life Modi’s story begins in the city of Palanpur, nestled in India’s western Gujarat state and known as the ancestral home of the country’s diamond merchant class.
    — Rhea Mogul, CNN Money, 9 Aug. 2026
  • Lupo played an integral part in the family’s life, having been included in some of the first public portraits of Prince George as a baby and toddler.
    — Audrey Schmidt, PEOPLE, 9 Aug. 2026
Definition of life
Noun
  • Honeywell Aerospace is experiencing strong demand, evidenced by its 8% order growth year over year, and $15 billion worth of new wins — as measured by lifetime value — year to date.
    — Jeff Marks, CNBC, 6 Aug. 2026
  • The red and white Victorian farmhouse had belonged to their friend, the late Steve Baker, who served as the city’s longtime historian and had packed the property with thousands of antique relics over his lifetime.
    — Dakota Kim, Los Angeles Times, 6 Aug. 2026
Definition of lifetime
Noun
  • In an exclusive chat with PEOPLE at the premiere on Sunday, Hathaway opened up about how pregnancy feels different this time around in her 40s.
    — Escher Walcott, PEOPLE, 10 Aug. 2026
  • Protect your base, then show up publicly with calm, steady authority that people can trust over time.
    — Tarot.com, Baltimore Sun, 10 Aug. 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 12 Aug. 2026.

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