lookout

lookout (http://definr.com/lookout)

     n 1: a person employed to watch for something to happen [syn: {lookout
          man}, sentinel, sentry, watch, spotter, scout,
           picket]
     2: an elevated post affording a wide view [syn: {observation
        post}]
     3: a structure commanding a wide view of its surroundings [syn:
         observation tower, lookout station, observatory]
     4: the act of looking out [syn: outlook]