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
There’s another important way that dogs can benefit the study of cancer—as environmental sentinels.
—
Knowable Magazine, Smithsonian Magazine, 16 July 2025
Conservationists Annemarie van Doorn and Luke Playford watch over the region like sentinels.
—Angus Watson, CNN Money, 25 June 2025
On the second largest of the seven remote islands, historic Fort Jefferson stands like a sentinel over the sand.
—Kara Franker, Southern Living, 19 June 2025
Ser Gareth ignored him, scanning the treeline where the ancient sentinels stood like silent watchers, their branches heavy with snow that had fallen three days past and showed no sign of melting.
—Kelsey Piper, Vox, 12 May 2025
See All Example Sentences for sentinel
Knowable Magazine, Smithsonian Magazine, 16 July 2025
Conservationists Annemarie van Doorn and Luke Playford watch over the region like sentinels.
—Angus Watson, CNN Money, 25 June 2025
On the second largest of the seven remote islands, historic Fort Jefferson stands like a sentinel over the sand.
—Kara Franker, Southern Living, 19 June 2025
Ser Gareth ignored him, scanning the treeline where the ancient sentinels stood like silent watchers, their branches heavy with snow that had fallen three days past and showed no sign of melting.
—Kelsey Piper, Vox, 12 May 2025
See All Example Sentences for sentinel
Recent Examples of Synonyms for sentinel
Noun
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The entire nest changes, the child changes and the parents/guardians change.—
Tembi Locke,
PEOPLE,
4 Sep. 2025
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Leaders who grasp this framework will see themselves not just as managers of tasks but as architects of signals, stewards of patterns, cultivators of pathways, and guardians of heuristics.—
Scott Hutcheson,
Forbes.com,
3 Sep. 2025
Noun
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Dermish launched businesses to support the industry, offering everything from guards for drill sites to housing for oil field workers.—
ProPublica,
ProPublica,
4 Sep. 2025
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Bronny, the son of LeBron James, joined his father on the Los Angeles Lakers when the NBA team selected the freshman guard from the University of Southern California as the 55th overall pick in the second round of the 2024 NBA draft.—
Madison E. Goldberg,
People.com,
3 Sep. 2025
Noun
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Cloudflare, just like custodians of all web properties, has an affirmative duty to secure the service.—
Dan Goodin,
ArsTechnica,
4 Sep. 2025
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To mitigate this, business leaders need a data owner, data steward, data custodian and data protection officer in their data governance team.—
Jagadish Gokavarapu,
Forbes.com,
2 Sep. 2025
Noun
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Travis Scott, a former warden who ended his career spanning three decades by retiring in May, criticized the agency’s Medication-Assisted Treatment program, which was enacted to help inmates with substance abuse issues overcome their addiction.—
Perry Vandell,
AZCentral.com,
30 Aug. 2025
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Until a new warden is hired, an assistant warden will lead the jail on an interim basis, Martinez said.—
Alexandra Kukulka,
Chicago Tribune,
29 Aug. 2025
Noun
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Red Oak scored back-to-back TDs in the second period, as Thomas powered in for a two-yard TD run and Middleton scored on a 17-yard keeper.—
Mike Waters,
Fort Worth Star-Telegram,
5 Sep. 2025
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Nordstrom Rack Double Keeper Belt Nordstrom Rack is replete with black belts that won’t break the bank — one of them being this slim leather belt with a gold buckle and two gold keepers, which comes in sizes small to extra large.—
Izzy Baskette,
PEOPLE,
4 Sep. 2025
Noun
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Aside from scouting, sending messages or sentry duty, some dogs were trained for direct combat.—
Vic Verbalaitis,
MSNBC Newsweek,
22 Aug. 2025
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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
Cite this Entry
“Sentinel.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/sentinel. Accessed 9 Sep. 2025.
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