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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Examples of sentinel in a Sentence
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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.
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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
The women who didn’t speak sat in the courtroom, playing parts of nurturers and sentinels.
—Katie Rogers, New York Times, 7 June 2024
See all Example Sentences for sentinel 
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
The women who didn’t speak sat in the courtroom, playing parts of nurturers and sentinels.
—Katie Rogers, New York Times, 7 June 2024
See all Example Sentences for sentinel
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'sentinel.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
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“Sentinel.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/sentinel. Accessed 30 Oct. 2024.
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