sentry

Meaning

Noun

• A guard, particularly on duty at the entrance to a military base.
• Sentry duty; time spent being a sentry.
• A form of drag to be towed underwater, which on striking bottom is upset and rises to the surface.
• A watchtower.
• A animal like a marmot tasked with alerting the pack to danger.

Related

Similar words

• kite

Origin

• From earlier sentrie, sentery, of uncertain origin. Perhaps an alteration of sentinel or sanctuary; or perhaps from Old French senteret, diminutive of sentier, from Medieval Latin semitarius.