translator vs transliteration

translator

noun
  • A person who converts speech, text, film, or other material into a different language. (Contrasted with interpreter.) 

  • One that makes a new version of a source material in a different language or format. 

  • A computer program that translates something from one language to another using machine translation. 

transliteration

noun
  • The act or product of transliterating, of representing letters or words in the characters of another alphabet or script. 

  • The act or product of rendering speech in sign language, or vice versa. 

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