interlocutor vs talker

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. 

talker

noun
  • A person who talks, especially one who gives a speech, or is loquacious or garrulous. 

  • A stripped-down version of a MUD which is designed for talking, predating instant messengers; a kind of early chat room. 

  • A talk-show host. 

  • Mouth. 

  • Any creature or machine that talks. 

  • A talking point. 

  • An all-talk radio station. 

  • A popular topic of conversation. 

  • A talk show 

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