sentry suomeksi - Sanakirja.org (englanti-suomi)

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

The sentry, if that’s what he was, betrayed himself. The streetlights revealed puffs of cigarette smoke coming out the door, telling Kelly exactly where the first target was.

Monikko