English to English

noun (n)

• a narcotics addict(noun.person)

  Synonym:
  drug addict, junky
  

  source: wordnet30
• someone who is so ardently devoted to something that it resembles an addiction(noun.person)

  Example:
  A news junkie.
  

  Synonym:
  addict, freak, junky, nut
  

  source: wordnet30