sentry

noun

sen·​try ˈsen-trē How to pronounce sentry (audio)
plural sentries
Synonyms of sentry
: guard, watch
especially : a soldier standing guard at a point of passage (such as a gate)

Examples of sentry in a Sentence

The general placed an armed sentry at the bridge. a sentry posted to watch for intruders
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.
Moss has colonized the ceiling, and tall trees keep sentry over the store’s diverse and eclectic inventory. Marc Weingarten, Los Angeles Times, 13 June 2026 Also, his paint was burned off in just the same spots as the snowman that had, for years, served as a jolly sentry outside our neighbor’s front door—a position that was now vacant, while our own home was, in a first, conspicuously and festively guarded. Caity Weaver, The Atlantic, 12 June 2026 Access to platforms was blocked off with bicycle-rack style barricades and roll-down gates as MTA police officers stood sentry, directing people to alternative transportation. Mirna Alsharif, NBC news, 16 May 2026 But a Marine sentry was spotted outside the West Wing most of the day Saturday, usually a sign the president is at work. James Laporta, CBS News, 5 Apr. 2026 See All Example Sentences for sentry

Word History

Etymology

perhaps from obsolete sentry sanctuary, watchtower

First Known Use

1608, in the meaning defined above

Time Traveler
The first known use of sentry was in 1608

Browse Nearby Words

Cite this Entry

“Sentry.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sentry. Accessed 16 Jun. 2026.

Kids Definition

sentry

noun
sen·​try ˈsen-trē How to pronounce sentry (audio)
plural sentries
: guard entry 1 sense 3a
especially : a soldier standing guard at a point of passage

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