#guard  a person who keeps watch over something or someone
  supertype:  #guardian__defender__protector__shielder  a person who cares for persons or property
  subtype:  #bouncer__chucker-out__chuckerout  a person whose duty is to throw troublemakers out of a bar or public meeting
  subtype:  #doorman__doorkeeper__door_guard__hall_porter__porter__gatekeeper__ostiary  someone who guards the entrance to a building
     subtype:  #commissionaire  (British) a uniformed doorman
     subtype:  #night_porter__nightporter  a porter on duty during the night
     subtype:  #ticket_collector__ticket_taker  someone who is paid to admit only those who have purchase tickets
  subtype:  #halberdier  a guard who carries a halberd (as a symbol of his duty)
  subtype:  #outrider  someone who is a member of the vanguard
  subtype:  #watchman__watcher__security_guard  a guard who keeps watch
     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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