dealer vs interlocutor

dealer

noun
  • One who deals or metes out anything. 

  • A particular type of stock broker or trader. 

  • One who deals in goods, especially automobiles; a middleman. 

  • A drug dealer, one who peddles illicit drugs. 

  • The person who deals the cards in a card game. 

interlocutor

noun
  • A person who takes part in dialogue or conversation. 

  • A man in the middle of the line in a minstrel show who questions the end men and acts as leader. 

  • A decree of a court. 

  • An interlocutory judgement or sentence. 

How often have the words dealer and interlocutor occurred in a corpus of books? (source: Google Ngram Viewer )