{i} careful looking or watching, guarding; point or tower from which a watch is kept; watchman; person or group that keeps watch, sentry, watchman; view, outlook; responsibility, object of concern
(1) A person designated to detect and report fires from a ventage point (2) A location from which fires can be detected and reported (3) A fire crew member assigned to observe the fire and warn the crew when there is danger of becoming trapped
If someone keeps a lookout, especially on a boat, they look around all the time in order to make sure there is no danger. He denied that he'd failed to keep a proper lookout that night
the act of looking out a structure commanding a wide view of its surroundings an elevated post affording a wide view a person employed to watch for something to happen
A member of the crew stationed on the forecastle, or on the bridge, whose duty it is to watch for any dangerous objects or for any other vessels heaving into sight