#spy  a secret watcher; someone who secretly watches other people; "my spies tell me that you had a good time last night"
  supertype:  spectator__witness__viewer__watcher__looker  a close observer; someone who looks at something (such as an exhibition of some kind); "the spectators applauded the performance"; "television viewers"; "sky watchers discovered a new star"
  subtype:  snoop__snooper  a spy who makes uninvited inquiries into the private affairs of others
     subtype:  eavesdropper  a secret listener to private conversations
        subtype:  phone_tapper__phonetapper__tapper__wiretapper  someone who wiretaps a telephone or telegraph wire
  subtype:  shadower__tail__shadow  a spy employed to follow someone and report their movements

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