Synonyms and Antonyms of sentry
a person or group that watches over someone or something <a sentry posted to watch for intruders> Synonyms custodian, guardian, keeper, lookout, minder, picket, sentinel, guard, warden, warder, watch, watcher, watchmanRelated Words observer, patrol, spotter, surveillant, watchdog; bodyguard, convoy, defender, escort, honor guard; gatekeeper; hack [slang]
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