communicator vs interlocutor

communicator

noun
  • Someone who, or something that communicates. 

  • Any of several electronic devices that allow people with various disabilities to communicate via displays or artificial speech. 

  • A usually portable communications device. 

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 communicator and interlocutor occurred in a corpus of books? (source: Google Ngram Viewer )