as in guard
a person or group that watches over someone or something
a sentry posted to watch for intruders
Synonyms & Similar Words
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Example Sentences
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Recent Examples of sentry
Reenactors portraying British sentries were bum-rushed by a swarm of whooping Green Mountain Boys.
—
Caity Weaver, The Atlantic, 8 Oct. 2025
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
Aside from scouting, sending messages or sentry duty, some dogs were trained for direct combat.
—Vic Verbalaitis, MSNBC Newsweek, 22 Aug. 2025
Rows of lights stood like sentries above, adorned with flat visors that guided the glow onto the action.
—Adithi Ramakrishnan, Twin Cities, 21 Aug. 2025
See All Example Sentences for sentry
Caity Weaver, The Atlantic, 8 Oct. 2025
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
Aside from scouting, sending messages or sentry duty, some dogs were trained for direct combat.
—Vic Verbalaitis, MSNBC Newsweek, 22 Aug. 2025
Rows of lights stood like sentries above, adorned with flat visors that guided the glow onto the action.
—Adithi Ramakrishnan, Twin Cities, 21 Aug. 2025
See All Example Sentences for sentry
Recent Examples of Synonyms for sentry
Noun
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In tennis, when the changing of the guard happens, the best often know.—
Patrick McEnroe,
New York Times,
28 Jan. 2026
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Sooners sixth-year guard Nijel Pack scored a game-high 22 points on 8-of-15 shooting, which included 6 for 11 from three-point range.—
Matt Byrne,
Arkansas Online,
28 Jan. 2026
Noun
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Parents, guardians and others can also contribute up to $5,000 annually until children turn 18 years old.—
Jessica Dickler,Kate Dore, CFP®, EA,
CNBC,
28 Jan. 2026
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Apparently, the Meyers in Long Beach were ruled unfit as guardians, or Lynn refused to go back to them, so juvenile authorities located some blood relatives, possibly her father or half sister, and put her on a train back East.—
Literary Hub,
Literary Hub,
27 Jan. 2026
Noun
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The subpoena to Frey's office reportedly asked for multiple categories of documents and ordered the office's records custodian to appear for testimony next month.—
Christopher Cann,
USA Today,
21 Jan. 2026
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He gets passed from one custodian to another, including scientists and aristocrats, all around Europe.—
The New Yorker,
New Yorker,
21 Jan. 2026
Noun
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Twenty minutes later, the warden and a representative from Immigration and Customs Enforcement showed them around.—
Jonathan Blitzer,
New Yorker,
19 Jan. 2026
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In it, the warden confirmed lights are on 24/7.—
Mirella Brussani,
CBS News,
19 Jan. 2026
Noun
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The gas Citizens Energy serves customers, typically methane, is naturally odorless so the company adds mercaptan, which smells like sulfur or rotten eggs, to serve as a sentinel in case there's a gas leak.—
Karl Schneider,
IndyStar,
10 Dec. 2025
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The populations in Akwa (also in southeastern Igboland) formed vigilante groups armed with rifles, built towers where sentinels were posted, and their shots would alert villagers if raiders came within sight.—
Literary Hub,
Literary Hub,
5 Dec. 2025
Noun
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The siblings have different personalities, according to their keepers; Xiao Xiao is timid while his sister Lei Lei is fearless and adapts to changes quickly.—
Chris Lau,
CNN Money,
25 Jan. 2026
-
Drake Maye ran for 68 yards and threw for 86 in sloppy, snowy conditions and scored New England’s only touchdown on a six-yard keeper, propelling the Patriots to their 12th Super Bowl with a 10-7 win over the Denver Broncos on Sunday.—
Los Angeles Times,
Los Angeles Times,
25 Jan. 2026
Cite this Entry
“Sentry.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/sentry. Accessed 30 Jan. 2026.
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