sentry.
A guard, particularly on duty at the entrance to a military base.
Meaning & usage
A guard, particularly on duty at the entrance to a military base.
Sentry duty; time spent being a sentry.
A form of drag to be towed underwater, which on striking bottom is upset and rises to the surface.
A watchtower.
An animal like a marmot tasked with alerting the pack to danger.
Where this word comes from
From earlier sentrie, sentery, of uncertain origin. Perhaps an alteration of sentinel or sanctuary; or perhaps from Old French senteret (“a path”), diminutive of sentier, from Medieval Latin semitarius (“a path”).
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.