as in guardian
a person or group that watches over someone or something
a lone sentinel kept watch over the fort
Synonyms & Similar Words
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Example Sentences
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Recent Examples of sentinel
Each of the eight massive cabinets stood like giant yellow sentinels guarding the dancefloor.
—
Jeremy D. Larson, Pitchfork, 14 Aug. 2025
The previous study had shown that CLNP changed the behavior of dendritic cells, specialized immune cells that act as the immune system’s sentinels, initiating and regulating immune responses.
—New Atlas, 6 Aug. 2025
Vending machines line one wall, glowing sentinels filled with bags of junk food.
—Longreads, 8 July 2025
On the second largest of the seven remote islands, historic Fort Jefferson stands like a sentinel over the sand.
—Kara Franker, Southern Living, 19 June 2025
See All Example Sentences for sentinel
Jeremy D. Larson, Pitchfork, 14 Aug. 2025
The previous study had shown that CLNP changed the behavior of dendritic cells, specialized immune cells that act as the immune system’s sentinels, initiating and regulating immune responses.
—New Atlas, 6 Aug. 2025
Vending machines line one wall, glowing sentinels filled with bags of junk food.
—Longreads, 8 July 2025
On the second largest of the seven remote islands, historic Fort Jefferson stands like a sentinel over the sand.
—Kara Franker, Southern Living, 19 June 2025
See All Example Sentences for sentinel
Recent Examples of Synonyms for sentinel
Noun
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The United States has traditionally acted as the guardian of this system.—
John Kerry,
semafor.com,
6 Nov. 2025
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Kids aged 7 to 18 can also walk in for the shot without a prescription, as long as a parent or guardian gives consent and talks it over with the pharmacist.—
Evan Moore
November 5,
Charlotte Observer,
5 Nov. 2025
Noun
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Atlanta played much better in a 1-point loss to the Patriots on the road last Sunday, but there are major concerns on the O-line after starting guards Matthew Bergeron and Chris Lindstrom had to leave the Pats game early.—
Tyler Everett,
MSNBC Newsweek,
6 Nov. 2025
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The last time San Diego State opened a men’s basketball season against Long Beach State, in 2010, Kawhi Leonard and the Aztecs trailed by one deep into the second half and needed three 3s by backup guard James Rahon to grind out a nervy road win.—
Mark Zeigler,
San Diego Union-Tribune,
5 Nov. 2025
Noun
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Onuba counseled now is the time to take another page from PE, which is their operating partner model, where operating partners sit between management and assets, thereby becoming custodians for the post asset-value integration.—
Jennifer Weil,
Footwear News,
4 Nov. 2025
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Ahuja noted that institutional infrastructure for bitcoin—custodians, liquidity providers, and banks—has matured significantly over the past several years, creating greater stability.—
Sheryl Estrada,
Fortune,
4 Nov. 2025
Noun
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Forest wardens walk into Kyebi Forest Reserve in the East Akim Municipal district in Ghana.—
Charlie Campbell,
Time,
30 Oct. 2025
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Falco is introduced to the world Kingstown as Nina Hobbs, the new warden running the prison where Kyle will be sent to.—
Demetrius Patterson,
HollywoodReporter,
27 Oct. 2025
Noun
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The team’s first four 2025 draft picks look like keepers.—
Zac Jackson,
New York Times,
5 Nov. 2025
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Orangutans sometimes spend weeks finding the necessary materials (wires, bolts, screws), hiding their elaborate preparations from their keepers, and awaiting the perfect moment to execute their plans.—
Ava Kofman,
New Yorker,
3 Nov. 2025
Noun
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Reenactors portraying British sentries were bum-rushed by a swarm of whooping Green Mountain Boys.—
Caity Weaver,
The Atlantic,
8 Oct. 2025
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The Russian military has been observing the Ukrainian military’s use of combat robots and is preparing to invest more in this area to help with tasks such as sentry duty, logistics, mining and demining, and undersea surveillance.—
DARA MASSICOT,
Foreign Affairs,
8 Oct. 2025
Cite this Entry
“Sentinel.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/sentinel. Accessed 9 Nov. 2025.
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