: guard, watch; especially : a soldier standing guard at a point of passage (as a gate)
Examples of SENTRY
- The general placed an armed sentry at the bridge.
- <a sentry posted to watch for intruders>
Origin of SENTRY
perhaps from obsolete sentry
First Known Use: 1608
Related to SENTRY
- custodian, guardian, keeper, lookout, minder, picket, sentinel, guard, warden, warder, watch, watcher, watchman
Seen & Heard
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