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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Examples Sentences
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Recent Examples of sentinel
Social structures and group dynamics further enhance their survival, as individuals can act as sentinels, warning others of danger.
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Scott Travers, Forbes, 26 Dec. 2024
Caleb Limpert, Rockvale High: The senior is passionate about FFA and agriculture, serving as the chapter president and regional sentinel.
—Andy Humbles, The Tennessean, 20 Dec. 2024
Terrified of outside pressures, the framers of the U.S. Constitution worked in strict privacy, boarding up the windows of Independence Hall and stationing armed sentinels at the door.
—James D’angelo, Foreign Affairs, 16 Apr. 2019
Seems dolphins are one of the major biological sentinels of our plastic pollution.
—Susanne Rust, Los Angeles Times, 22 Oct. 2024
See all Example Sentences for sentinel 
Scott Travers, Forbes, 26 Dec. 2024
Caleb Limpert, Rockvale High: The senior is passionate about FFA and agriculture, serving as the chapter president and regional sentinel.
—Andy Humbles, The Tennessean, 20 Dec. 2024
Terrified of outside pressures, the framers of the U.S. Constitution worked in strict privacy, boarding up the windows of Independence Hall and stationing armed sentinels at the door.
—James D’angelo, Foreign Affairs, 16 Apr. 2019
Seems dolphins are one of the major biological sentinels of our plastic pollution.
—Susanne Rust, Los Angeles Times, 22 Oct. 2024
See all Example Sentences for sentinel
Recent Examples of Synonyms for sentinel
Noun
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The district has provided detailed guidance to principals and staff on how to handle potential interactions with U.S. Immigration and Customs Enforcement and how to support students who may have a parent or guardian who has been detained by ICE during the school day.—
Nell Salzman,
Chicago Tribune,
20 Jan. 2025
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She was placed under a legal conservatorship by guardian Susan Morrissey in 2022, and last year it was made public that Williams has been diagnosed with frontotemporal dementia (FTD).—
Christian Holub,
EW.com,
16 Jan. 2025
Noun
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The bright spot for UConn in the first half was star guard Azzi Fudd, who shot 50% both from the field and beyond the arc for a team-leading nine points.—
Emily Adams,
Hartford Courant,
16 Jan. 2025
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Not only did James fill the box score, but former Heat guard Gabe Vincent, who largely has been uneven with the Lakers since leaving the Heat in 2023 free agency, this time provided a key bench spark.—
Ira Winderman,
Sun Sentinel,
16 Jan. 2025
Noun
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Reggae artists and cultural custodians have also carried Garvey’s teachings forward.—
Melissa Noel,
Essence,
19 Jan. 2025
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The same cryptocurrency that once powered the infamous Silk Road marketplace now serves as a respectable investment vehicle, complete with institutional custodians and regulatory oversight.—
Boaz Sobrado,
Forbes,
18 Jan. 2025
Noun
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Founded in 1975 as the Retired Correctional Peace Officers Museum, the facility is located in what was once the warden’s home, just outside the gates of the gray granite prison.—
Sharon Bernstein,
Sacramento Bee,
7 Jan. 2025
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Of the eight employees charged, five have pleaded guilty and there have been two convictions, including the former warden, Ray Garcia.—
Dan Perry,
Newsweek,
18 Dec. 2024
Noun
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D’Onta Foreman had a 38-yard run on the second play of the drive, and Sam Darnold scored on an option keeper.—
Dave Birkett,
USA TODAY,
25 Dec. 2022
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Egan’s 1-yard touchdown run on a fourth-down keeper pulled the Chargers within 28-26 with 4:57 left in the third quarter.—
Jason Frakes,
The Courier-Journal,
26 Nov. 2022
Noun
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Canine work also includes some of the partnerships that have been the backbone of human-dog coevolution, such as guarding, herding, hunting, and acting as sentry.—
Jessica Pierce,
TIME,
15 Dec. 2024
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About a quarter-mile down the road, two soaring launch towers – one for each launch pad – sit sentry on SpaceX’s launch site as workers mill around.—
Rick Jervis,
USA TODAY,
18 Dec. 2024
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Cite this Entry
“Sentinel.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/sentinel. Accessed 29 Jan. 2025.
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