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
Arizona’s iconic saguaro cactuses seem like immobile sentinels standing watch over the Sonoran desert landscape.
—
John Leos, AZCentral.com, 10 Nov. 2025
The world’s lakes are considered sentinels of climate change and are warming dramatically as global temperatures rise.
—Laura Paddison, CNN Money, 6 Nov. 2025
By removing friction, letting AI handle the heavy lifting and investing in modern SAT/PST, leaders transform reluctant users into proactive sentinels.
—Eyal Benishti, Forbes.com, 19 Sep. 2025
The satellite, Space Weather Follow-On L1 (SWFO-L1), is launching just in time, as scientists warn our aging fleet of solar sentinels is reaching the end of its life.
—Daisy Dobrijevic, Space.com, 19 Sep. 2025
See All Example Sentences for sentinel
John Leos, AZCentral.com, 10 Nov. 2025
The world’s lakes are considered sentinels of climate change and are warming dramatically as global temperatures rise.
—Laura Paddison, CNN Money, 6 Nov. 2025
By removing friction, letting AI handle the heavy lifting and investing in modern SAT/PST, leaders transform reluctant users into proactive sentinels.
—Eyal Benishti, Forbes.com, 19 Sep. 2025
The satellite, Space Weather Follow-On L1 (SWFO-L1), is launching just in time, as scientists warn our aging fleet of solar sentinels is reaching the end of its life.
—Daisy Dobrijevic, Space.com, 19 Sep. 2025
See All Example Sentences for sentinel
Recent Examples of Synonyms for sentinel
Noun
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Parents, guardians, aunts and uncles don't have time to read every book on the shelf while trying to pick something for the young reader in their life, so here are some simple ways to determine if a book is suitable for that child.—
Cody Godwin,
USA Today,
2 Apr. 2026
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Hernandez listed herself as Ruben’s guardian or emergency contact in paperwork with North Shore Medical Center, Golden Glades Nursing and Rehabilitation Center and Larkin Community Hospital — though Ruben and Carmen were married.—
Carol Marbin Miller,
Miami Herald,
2 Apr. 2026
Noun
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Playing on the second night of a back-to-back after winning at Memphis on Monday night, the Suns (42-34) were led by two-time All-NBA guard Devin Booker, who scored a game-high 34 points.—
Jason Beede,
The Orlando Sentinel,
1 Apr. 2026
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Injury update Heat guard Norman Powell was ruled out for a third consecutive game with an upper respiratory infection.—
Anthony Chiang,
Miami Herald,
1 Apr. 2026
Noun
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Jimenez, who works as a custodian, said that shopping at the non profit's market saves her family a lot of money.—
Michele Gile,
CBS News,
2 Apr. 2026
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Night custodians were finishing up their rounds.—
Literary Hub,
Literary Hub,
1 Apr. 2026
Noun
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The sheriff also said the warden had reached out regarding an allegation of an incident under the Prison Rape Elimination Act, but then did not call the department back to further investigate.—
Teri Figueroa,
San Diego Union-Tribune,
26 Mar. 2026
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On this gravelly, dusty, single lane, Bob Markle applied a pursuit trick that wardens learn early.—
Dave Duffey,
Outdoor Life,
26 Mar. 2026
Noun
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The match was 0-0 until the 83rd minute in the first overtime when Andie Hafner took a pass and then slipped it past a defender and the keeper from 13 yards out to give Centennial a 1-0 lead.—
Darren Lauber,
Fort Worth Star-Telegram,
1 Apr. 2026
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Cure, which opened in 2009, is both record-keeper and innovator, an admirable endeavor in a city that is the birthplace of the cocktail.—
Scott Hocker,
TheWeek,
30 Mar. 2026
Noun
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The soldiers would have stayed as sentries before and after the performance, symbolically guarding the legacy of Taiwan’s founder.—
Timothy Nerozzi,
The Washington Examiner,
13 Mar. 2026
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Police had taped off several square blocks around Sixth Street, while local police and federal authorities, including Bureau of Alcohol, Tobacco, Firearms and Explosives agents, were at the site, according to Austin police officers serving as sentries.—
Jack Myer,
Los Angeles Times,
1 Mar. 2026
Cite this Entry
“Sentinel.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/sentinel. Accessed 6 Apr. 2026.
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