sentinel

noun

ˈsent-nəl How to pronounce sentinel (audio)
Definition of sentinelnext
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

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of sentinel Tuna are also ecologically important apex predators and serve as sentinels of ocean health. — Torben Rick, The Conversation, 12 Oct. 2026 The program finally comes to an end For more than 55 years, at least a handful of these satellites have been flying as silent sentinels—until last month. — Eric Berger, ArsTechnica, 2 Oct. 2026 My sentinel, dressed in a sharp black suit, his frigid blue eyes taut with grief. — Clare Mulroy, USA Today, 10 Sep. 2026 In the film, robotic sentinels have been constructed to kill all mutants and any humans harboring them. — Keith Langston, PEOPLE, 18 July 2026 See All Example Sentences for sentinel
Recent Examples of Synonyms for sentinel
  1. guardian
  2. guard
  3. custodian
  4. warden
  5. keeper
  6. sentry
Noun
  • That's because their potential guardians get detained themselves or are afraid or unable to complete the sponsorship process.
    — CBS News, CBS News, 2 Nov. 2026
  • This may mean removing an abusive parent as their guardian and establishing another relative or foster parent in place of the parent.
    — Sasha Allen, Hartford Courant, 1 Nov. 2026
Definition of guardian
Noun
  • The former Detroit Pistons guard Malik Beasley recently pleaded guilty to manipulating his prop bets.
    — New Yorker, New Yorker, 8 Nov. 2026
  • He was shot during the police chase and is under constant police guard, but has not yet been formally detained because of his medical condition, law enforcement said.
    — Dragana Jovanovic, ABC News, 8 Nov. 2026
Definition of guard
Noun
  • Mandy Muir Mandy Muir is a senior Murumburr custodian and Kakadu National Park’s longest-serving guide, leading tours on Yellow Water Billabong and at the Burrungkuy rock art site in the Northern Territory.
    — Liam Freeman, Vogue, 11 Nov. 2026
  • Custody ambitions Unlike commercial vaults, the new facility will be operated by Singapore’s central bank, offering foreign monetary authorities an alternative sovereign custodian for their gold.
    — Lee Ying Shan, CNBC, 11 Nov. 2026
Definition of custodian
Noun
  • Soon after, a warden shook Guardado and shouted his name, but got no response and a medic then pronounced him dead.
    — KIM CHANDLER, Arkansas Online, 6 Nov. 2026
  • As the twitching subsided, the team warden shook Guardado and shouted his name, but there was no response.
    — David Fischer, The Orlando Sentinel, 5 Nov. 2026
Definition of warden
Noun
  • That ended a 144-minute scoreless streak for Angel City keeper Angelina Anderson.
    — Kevin Baxter, Los Angeles Times, 2 Nov. 2026
  • Meanwhile, Texas State scored a touchdown on all three of its drives that ended in the quarter, including a 67-yard touchdown pass and a 35-yard keeper from Bobcats QB Brad Jackson.
    — Idaho Statesman, Idaho Statesman, 1 Nov. 2026
Definition of keeper
Noun
  • Some of them have panoramic views of white windmills, which dot the coastline of the Taiwan Strait like slender sentries.
    — Gideon Lewis-Kraus, New Yorker, 19 Oct. 2026
  • And Ric Salinas, who plays Chachalacani, humorously obliges, bringing his Culture Clash vaudeville skills to the role of the sentry who’s caught between the rock of Klion’s tyranny and his fellow feeling for Antíkona’s sympathetic cause.
    — Theater Critic, Los Angeles Times, 11 Sep. 2026
Definition of sentry

Browse Nearby Words

sentiments
sentinel
sentinels
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Cite this Entry

“Sentinel.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/sentinel. Accessed 15 Nov. 2026.

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