as in guardian
a person or group that watches over someone or something
a lone sentinel kept watch over the fort
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Recent Examples of sentinel
The system’s sentinels had permitted him to run a wildly iconoclastic campaign that galvanized young Iranians and unshackled an extraordinary debate over the once-sacrosanct nuclear program.
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Suzanne Maloney, Foreign Affairs, 27 Nov. 2013
In the distant future, 2023, the world is dominated by mutant killing sentinels, Xavier (Stewart), Magneto (Ian McKellen), and the X-Men send Jackman's Wolverine back in time to the ’70s.
—Rendy Jones, EW.com, 29 July 2024
In the film, robotic sentinels have been constructed to kill all mutants and any humans harboring them.
—Keith Langston, Peoplemag, 27 July 2024
Whole trees—ancient, massive sentinels that might weigh as much as 60 tons—shed into the water, sometimes hundreds at a time.
—Boyce Upholt, Smithsonian Magazine, 11 June 2024
See all Example Sentences for sentinel 
Suzanne Maloney, Foreign Affairs, 27 Nov. 2013
In the distant future, 2023, the world is dominated by mutant killing sentinels, Xavier (Stewart), Magneto (Ian McKellen), and the X-Men send Jackman's Wolverine back in time to the ’70s.
—Rendy Jones, EW.com, 29 July 2024
In the film, robotic sentinels have been constructed to kill all mutants and any humans harboring them.
—Keith Langston, Peoplemag, 27 July 2024
Whole trees—ancient, massive sentinels that might weigh as much as 60 tons—shed into the water, sometimes hundreds at a time.
—Boyce Upholt, Smithsonian Magazine, 11 June 2024
See all Example Sentences for sentinel
Recent Examples of Synonyms for sentinel
Noun
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Parents or guardians can complete claim forms for those under 18.Antonio Pequeño IV, Forbes, 10 Dec. 2024
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But now board members will at least consider a guardian program.Steven Walker, Orlando Sentinel, 7 Dec. 2024
Noun
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Third-year guard/center Doug Kramer made a key mistake on the same third-quarter red zone trip as Amegadjie’s second holding penalty.Colleen Kane, Chicago Tribune, 17 Dec. 2024
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Any hope of a comeback for the outmatched Mustangs was wiped out once UCLA guard Londynn Jones hit a fast-break three to give UCLA a 31-point lead within the first minute of the fourth quarter en route to a dominant 69-37 victory.Andrés Soto, Los Angeles Times, 17 Dec. 2024
Noun
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Each chapter is devoted to a different custodian whom the author visits personally, incorporating his own experiences in a clear and evocative style that puts us right in the story with him.Laura Kiniry, Smithsonian Magazine, 6 Dec. 2024
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This included butch lesbians, who were often drawn to blue-collar jobs for which key rings were essential, such as being a custodian, a postal worker, or a mechanic, according to Slate.James Factora, Them, 5 Dec. 2024
Noun
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Broadway and a neighboring inmate, Anthony Ehlers, had at some point before Broadway’s death told the prison warden about these issues and the high temperatures, and Truitt assured them that the issues would get fixed, the lawsuit alleges.Olivia Olander, Chicago Tribune, 14 Nov. 2024
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Five minutes into the procedure, the warden shook him and shouted his name.Brendan Farrington, Sun Sentinel, 29 Aug. 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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Perfectly conical volcanic peaks, dusted in snow, rise like sentries across the horizon.Mark Johanson, Robb Report, 30 Nov. 2024
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Three-story red brick buildings stand like sentries and slides and swings adorned the front yards of nearby homes.Ignacio Calderon, USA TODAY, 1 Nov. 2024
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Cite this Entry
“Sentinel.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/sentinel. Accessed 22 Dec. 2024.
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