interpreter vs polyglot

interpreter

noun
  • A person who converts spoken or signed language into a different language for the benefit of one or more others who do not understand the first language being used (especially if in real time or shortly after that person has finished communicating). (Contrasted with translator.) 

  • A program that executes another program written in a high-level language by reading the instructions in real time rather than by compiling it in advance. 

  • A guide who helps people visiting an attraction such as an art exhibit, a nature reserve, etc., understand what they are seeing. 

  • Something that reveals or clarifies. 

  • A person who interprets. 

polyglot

noun
  • One who has mastered (especially when able to speak) several languages. 

  • A publication in several languages; specifically, a book (especially a bible) containing several versions of the same subject matter or text in several languages. 

  • A mixture of languages or nomenclatures. 

  • A file that can be interpreted validly as multiple formats. 

  • A program written to be valid in multiple programming languages. 

adj
  • Of a person: speaking, or versed in, many languages; multilingual. 

  • Containing, or made up of, several languages; specifically, of a book (especially a bible): having text translated into several languages. 

  • Comprising various (native) linguistic groups; multilingual. 

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