lookout (n.)
- activity
- admonisher
- affair
- affairs
- alert
- bag
- beacon
- belvedere
- bleachers
- bridge
- business
- cityscape
- commerce
- concern
- cupola
- custodianship
- custody
- difficulty
- employ
- employment
- enterprise
- espial
- espionage
- fireguard
- function
- gallery
- gazebo
- grandstand
- guard
- guardianship
- headache
- interest
- invigilation
- labor
- landscape
- lighthouse
- looking
- loophole
- matter
- monitor
- monitoring
- note
- notice
- observance
- observation
- observatory
- occupation
- outlook
- overlook
- palaver
- panorama
- patrol
- patroller
- patrolman
- peephole
- perspective
- pharos
- picket
- problem
- prospect
- prudence
- regard
- respect
- responsibility
- ringside
- roundsman
- scape
- scene
- scenery
- scout
- seascape
- sentinel
- sentry
- service
- sight
- signaler
- signalman
- spotter
- spying
- stewardship
- surveillance
- sweep
- thing
- tout
- tower
- undertaking
- view
- viewing
- vigil
- vigilance
- vista
- ward
- wariness
- warner
- watch
- watcher
- watchfulness
- watching
- watchman
- watchtower
- waterscape
- work
- worry
