sentinel

1 of 2

noun

sen·​ti·​nel ˈsent-nəl How to pronounce sentinel (audio)
ˈsen-tə-nəl
: sentry

sentinel

2 of 2

verb

sentineled or sentinelled; sentineling or sentinelling

transitive verb

1
: to watch over as a sentinel
2
: to furnish with a sentinel
3
: to post as sentinel

Examples of sentinel in a Sentence

Noun a lone sentinel kept watch over the fort
Recent Examples on the Web
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.
Noun
Caleb Limpert, Rockvale High: The senior is passionate about FFA and agriculture, serving as the chapter president and regional sentinel. Andy Humbles, The Tennessean, 20 Dec. 2024 Terrified of outside pressures, the framers of the U.S. Constitution worked in strict privacy, boarding up the windows of Independence Hall and stationing armed sentinels at the door. James D’angelo, Foreign Affairs, 16 Apr. 2019
Verb
While penicillin was a game-changer, microorganisms were able to quickly adapt developing mutations to neutralize the effects of this antibiotic, sort of like those robot sentinels in the movie X-Men: Days of Future Past. Bruce Y. Lee, Forbes, 17 Sep. 2024 Think delicate epiphytic orchids curling around the knobby trunks of waving palms; white clapboard cottages with shutters in shades of salmon, sunshine, and seafoam; and a stretch of private beach with a lighthouse sentinel on the horizon. Caroline Rogers, Southern Living, 30 June 2023 See all Example Sentences for sentinel 

Word History

Etymology

Noun

Middle French sentinelle, from Old Italian sentinella, from sentina vigilance, from sentire to perceive, from Latin

First Known Use

Noun

1579, in the meaning defined above

Verb

1593, in the meaning defined at sense 1

Time Traveler
The first known use of sentinel was in 1579

Dictionary Entries Near sentinel

Cite this Entry

“Sentinel.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sentinel. Accessed 30 Dec. 2024.

Kids Definition

sentinel

noun
sen·​ti·​nel
ˈsent-(ə-)nəl
: sentry

Medical Definition

sentinel

adjective
sen·​ti·​nel ˈsent-ᵊn-əl How to pronounce sentinel (audio)
: being an individual or part of a population potentially susceptible to an infection or infestation that is being monitored for the appearance or recurrence of the causative pathogen or parasite

More from Merriam-Webster on sentinel

Last Updated: - Updated example sentences
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