as in duration
the period during which something exists, lasts, or is in progress
the lifetime of the camera's batteries was so short we couldn't get through a day trip without having to replace them
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Example Sentences
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Recent Examples of lifetime
Even a lifetime of swimming privileges – depending on the size of the lawn, a year’s worth of maintenance at a home that’s not yours is quite a big ask.
—
Eric Thomas, The Orlando Sentinel, 27 June 2025
Even a lifetime of swimming privileges — depending on the size of the lawn, a year’s worth of maintenance at a home that’s not yours is quite a big ask.
—R. Eric Thomas, Denver Post, 27 June 2025
So these events are rare, and most people go a lifetime without seeing one.
—Kierra Frazier, CBS News, 26 June 2025
It’s sparked his season A peak of a lifetime followed some of Kerkering's lowest moments in professional baseball.
—Charlotte Varnes, New York Times, 17 June 2025
See All Example Sentences for lifetime
Eric Thomas, The Orlando Sentinel, 27 June 2025
Even a lifetime of swimming privileges — depending on the size of the lawn, a year’s worth of maintenance at a home that’s not yours is quite a big ask.
—R. Eric Thomas, Denver Post, 27 June 2025
So these events are rare, and most people go a lifetime without seeing one.
—Kierra Frazier, CBS News, 26 June 2025
It’s sparked his season A peak of a lifetime followed some of Kerkering's lowest moments in professional baseball.
—Charlotte Varnes, New York Times, 17 June 2025
See All Example Sentences for lifetime
Recent Examples of Synonyms for lifetime
Noun
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Each canine’s sniffing behavior is tracked by sensors and algorithms that quantify subtle physiological cues, such as sniff duration, hesitation or posture.—
Sindhya Valloppillil,
Forbes.com,
1 July 2025
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So far, the rally has been nearly uninterrupted, allowing MSFT to sustain short-term overbought conditions for an unusually long duration, but a new counter-trend signal from the DeMARK Indicators (denoted by the '13') suggests a short-term downturn may be imminent.—
Katie Stockton,
CNBC,
30 June 2025
Noun
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The move also paves the way for rookie Marcelo Mayer to remain in the majors and assume the bulk of the playing time at second base.—
Mac Cerullo,
Boston Herald,
11 July 2025
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This past season, Thrun, a Harvard alum, appeared in 60 games, had 12 points, and averaged 17:31 of ice time.—
Curtis Pashelka,
Mercury News,
11 July 2025
Noun
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Drake’s music spoke to a particular kind of dislocation that resonated more deeply as modern life grew louder and faster.—
arkansasonline.com,
arkansasonline.com,
5 July 2025
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Again, such symptoms are quite non-specific and can represent many different conditions ranging from too much stress in your life to sleep apnea to depression to long Covid to cancer.—
Bruce Y. Lee,
Forbes.com,
5 July 2025
Cite this Entry
“Lifetime.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/lifetime. Accessed 14 Jul. 2025.
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