as in guardian
a person or group that watches over someone or something
a lone sentinel kept watch over the fort
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Example Sentences
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Recent Examples of sentinel
Corkie putting the snake into the tub looks like the sentinels or the wire going into people’s pods.
—
Nick Newman,
IndieWire,
1 June 2026
And for decades, billboards with Smart’s smiling face stood like sentinels along Highway 101, silently urging anyone with information to come forward.
—
Chelsea Bailey,
CNN Money,
8 May 2026
Their Tibetan ancestry dates back thousands of years to when they were bred as an interior sentinel in the Buddhist monasteries.
—
Katelyn Chef,
Martha Stewart,
12 Apr. 2026
Precedent for this idea comes from Poland, where many cities already use freshwater mussels as living sentinels of water quality, wired with sensors that register when the animals clamp their shells shut in response to pollutants.
—
IEEE Spectrum,
31 Mar. 2026
See All Example Sentences for sentinel
Nick Newman,
IndieWire,
1 June 2026
And for decades, billboards with Smart’s smiling face stood like sentinels along Highway 101, silently urging anyone with information to come forward.
—
Chelsea Bailey,
CNN Money,
8 May 2026
Their Tibetan ancestry dates back thousands of years to when they were bred as an interior sentinel in the Buddhist monasteries.
—
Katelyn Chef,
Martha Stewart,
12 Apr. 2026
Precedent for this idea comes from Poland, where many cities already use freshwater mussels as living sentinels of water quality, wired with sensors that register when the animals clamp their shells shut in response to pollutants.
—
IEEE Spectrum,
31 Mar. 2026
See All Example Sentences for sentinel
Recent Examples of Synonyms for sentinel
Noun
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Katherine was later reinstated as a co-guardian.
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Instead, the decision is left to parents and guardians.
Noun
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Los Angeles acquired guard Darius Garland in a trade last season, and there are rumors that Kawhi Leonard is on the trade block.
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After the top four picks, the draft was considered wide open with a logjam of talented guards.
Noun
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Western Union announcing stablecoin issuance on Solana with Anchorage as custodian.
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In January of 2022, this Prancing Horse was sold to its current custodian, yacht designer Terence Disdale, whose creations include the 533-foot Eclipse, commissioned by Russian billionaire Roman Abramovich.
Noun
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His dad’s old cop buddy (Peter Outerbridge) just happens to be David’s prison warden.
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The photo pushes David—who has maintained his innocence all along—to escape from prison with the help of Philip Mackenzie (Peter Outerbridge), the prison warden and a longtime friend of his father who believes him, and Mackenzie’s son Adam (Jonathan Tucker), a police sargeant.
Noun
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England's Anthony Gordon had a beautiful straight shot at Ghana's goal in the 57th minute, which landed straight in the arms of keeper Benjamin Asare.
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After a lengthy weather delay, play finally resumed on the pitch, where Iraq made a costly mistake on a goal kick that the keeper was not prepared to handle, and Ousmane Dembele served an easy pass to Mbappe to set up his second goal of the evening.
Noun
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Moss has colonized the ceiling, and tall trees keep sentry over the store’s diverse and eclectic inventory.
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Also, his paint was burned off in just the same spots as the snowman that had, for years, served as a jolly sentry outside our neighbor’s front door—a position that was now vacant, while our own home was, in a first, conspicuously and festively guarded.
Cite this Entry
“Sentinel.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/sentinel. Accessed 26 Jun. 2026.
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