Sentry
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Sentry".

Sentry may refer to:

• A sentry is a guard at a gate or other point of passage. See General Orders for Sentries
• Sentry (monitoring system), an automatic near-Earth asteroid collision monitoring system
• Sentry (comics), the codename of unrelated fictional characters of the Marvel Universe, most notably Robert Reynolds
• Sentry Foods, a chain of grocery stores in Wisconsin, United States
• E-3 Sentry AWACS, airborne early warning aircraft
• Sentry Insurance, a Wisconsin based insurance company
• Sentry gun, a gun that automatically aims and fires at targets
• SentrySafe, a safe manufacturing company headquartered in Rochester, New York
• The Sentinel (video game) released in the US as The Sentry

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