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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About 10 minutes later, one or two members of the group broke off to spray-paint vehicles and the guard booth.—
Emerson Clarridge
Updated February 17,
Fort Worth Star-Telegram,
18 Feb. 2026
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Wolverines junior guard Pierce Thompson scored 22 points and senior guard Amir Jones, who is going to Georgia State, scored 21 points including five 3-pointers.—
Steve Fryer,
Oc Register,
18 Feb. 2026
Noun
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And so the city was exposed to future hurricanes, and lost the living guardians whose roots held the land in place.—
Melina Walling,
Los Angeles Times,
19 Feb. 2026
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Investigators determined Colgrove was the legal guardian for her 4-year-old grandson.—
Elissa Jorgensen,
Dallas Morning News,
16 Feb. 2026
Noun
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Mark Glende, Rosemount, is an elementary school custodian.—
Mark Glende,
Twin Cities,
1 Feb. 2026
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The board also approved cutting positions at multiple school sites, including assistant principals, high school teachers, special education specialists, custodians and secretaries, as well as the district’s only communications director.—
Kyle Martin,
Mercury News,
31 Jan. 2026
Noun
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On January 20th, Senators Alex Padilla and Adam Schiff toured the facility and spoke with the warden as part of an oversight visit.—
Oren Peleg,
New Yorker,
28 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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Academic medical center sentinel networks.—
Robert B. Shpiner,
STAT,
13 Feb. 2026
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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
Noun
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The Portuguese giant had been heading out of the Champions League on goal difference until the 6-foot-6-inch keeper rose superbly to head home a free kick and seal a dramatic 4-2 victory which put Benfica into the playoffs for the last 16.—
Patrick Snell,
CNN Money,
17 Feb. 2026
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Aliyah Chappell, also a junior, plays keeper.—
Dan Albano,
Oc Register,
17 Feb. 2026
Cite this Entry
“Sentry.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/sentry. Accessed 19 Feb. 2026.
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