snooper

Definitions of snooper
  1. noun
    a spy who makes uninvited inquiries into the private affairs of others
    synonyms: snoop
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    types:
    eavesdropper
    a secret listener to private conversations
    phone tapper, tapper, wiretapper
    someone who wiretaps a telephone or telegraph wire
    type of:
    spy
    a secret watcher; someone who secretly watches other people
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