bilingual vs interpreter

bilingual

noun
  • A person who is able to use two languages. 

adj
  • Hypernym: multilingual 

  • Having the ability to speak two languages. 

  • Characterized by the use or presence of two languages. 

  • Spoken or written in two different languages. 

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. 

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