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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The irony is that in not trying to pass muster with more conservative theatergoers (and their fastidious institutional guardians), playwrights have been winning over not just critics but also formerly squeamish artistic directors and perennially nervous Broadway producers.
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Evacuees must provide proof of evacuation, and parents or guardians must remain with their children at all times.
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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There – with three weeks left for Landor to serve – the warden ignored the judicial order, directing guards to shackle Landor and forcibly shave his head.
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The warden’s high-stakes deal is for Murphy to smuggle gold out of a remote mine.
Noun
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Jayed ruled that Waldermar Anton collided with the keeper while the ball was airborne, disallowing the goal.
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Rest in peace, Ser Simon Strong, castellan of Harrenhal, drip king, stealth diva, keeper of the best vibes on House of the Dragon.
Noun
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Finally, unable to stand down the household guard on her own, Alicent confesses her scheme to Helaena, who orders the sentries on the ramparts to hold fire when Rhaenyra flies in on Syrax.
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Moss has colonized the ceiling, and tall trees keep sentry over the store’s diverse and eclectic inventory.
Cite this Entry
“Sentinel.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/sentinel. Accessed 3 Jul. 2026.
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