sentry
UK /ˈsɛn.tɹi/ US /ˈsɛn.tɹi/
noun 5
Definitions
noun
1
A guard, particularly on duty at the entrance to a military base.
Additional sentries are keeping watch for any signs of an ambush.
2
Sentry duty; time spent being a sentry.
3
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.
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