English

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Alternative forms

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Etymology

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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).

Pronunciation

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Noun

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sentry (plural sentries)

  1. A guard, particularly on duty at the entrance to a military base.
  2. (uncountable) Sentry duty; time spent being a sentry.
  3. (nautical) A form of drag to be towed underwater, which on striking bottom is upset and rises to the surface.
  4. A watchtower.
  5. An animal like a marmot tasked with alerting the pack to danger.

Synonyms

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  • (nautical drag): kite

Derived terms

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Translations

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See also

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Anagrams

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