#watchman__watcher__security_guard  a guard who keeps watch
  supertype:  #guard  a person who keeps watch over something or someone
  member of:  #private_security_force
  subtype:  #bank_guard  a security guard at a bank
  subtype:  #fire_watcher  (during World War II in Britain) someone whose duty was to watch for fires caused by bombs dropped from the air
  subtype:  #lookout_man__lookoutman__lookout__sentinel__sentry__watch__spotter__scout__picket  a person employed to watch for something to happen
  subtype:  #night_watchman__nightwatchman  a watchman who works during the night
  subtype:  #patroller  someone on patrol duty; an individual or a member of a group that patrols an area
  subtype:  #portwatcher  a watchman on a wharf

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