variants
also life span
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
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Recent Examples of lifespan
The team found four distinct turning points in brain development across people's lifespan.
—
Rebecca Ramirez, NPR, 14 Jan. 2026
Elon Musk is full of bold predictions, but none may be as controversial as his conclusion that a longer human lifespan is something that can be engineered.
—Marco Quiroz-Gutierrez, Fortune, 14 Jan. 2026
Old Age Leaves have a natural lifespan, like all living things.
—Leanne Potts, Better Homes & Gardens, 14 Jan. 2026
The original plan for Hubble was that it would be retrieved or deorbited by a Space Shuttle mission at the end of its lifespan.
—Chris Young, Interesting Engineering, 13 Jan. 2026
And while lights may seem durable, improper storage can shorten their lifespan.
—Jamie Cuccinelli, Martha Stewart, 13 Jan. 2026
In addition, deep cleaning the crud out of appliances extends lifespan and functionality.
—Mary Marlowe Leverette, The Spruce, 13 Jan. 2026
The Sydney study showed that exercise benefits peaked at 50 minutes per day, meaning exercising beyond that wasn’t linked to a longer lifespan.
—Lindsey Leake, NBC news, 13 Jan. 2026
Why can sleep have such a big impact on your lifespan?
—Korin Miller, SELF, 12 Jan. 2026
Recent Examples of Synonyms for lifespan
Noun
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Not one of the SBX users hit critical oxygen levels, and all remained safely buried for the full 35-minute duration of the experiment.—
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Artemyev has spent a total of 560 days in space across three long-duration missions to the ISS, which launched in March 2014, March 2018 and March 2022.—
Noun
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The woman running the daycare had attempted life-saving measures on the child before emergency services arrived, First Alert 4 reported.—
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Those on the right, determined to make the case that this was an officer killing in self-defense, should instead be beginning with this utter failure to protect the life of a civilian protester and de-escalate the situation through some means other than shooting a fellow American in the head.—
Noun
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This is a free, lifetime pass that will grant the holder free entry to all national parks.—
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Aside from his nine-figure Amazon deal and popular YouTube channel with 107 billion lifetime views, Donaldson hit the ultra-rich club—at least on paper—from a slew of successful businesses.—
Noun
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The Consumer Financial Protection Bureau at the time estimated that the Biden administration’s action would save families more than $10 billion a year by cutting fees from an average of $32.—
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Earlier this year, the country singer shared a recipe for her mom’s famous cherry cookies just in time for Valentine’s Day.—
Cite this Entry
“Lifespan.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/lifespan. Accessed 20 Jan. 2026.
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