millionaire vs mogul

millionaire

noun
  • A person whose net worth is at or greater than one million units of the local currency; a multimillionaire. 

  • A person whose net worth is at or greater than one million units of the local currency, but less than two million. 

mogul

noun
  • A rich or powerful person; a magnate, nabob. 

  • A machine that forms shaped candies from syrups or gels. 

  • A larger-sized (39 mm diameter) screw base used for large, high-power light bulbs, known as mogul (screw) base light bulbs. 

  • A hump or bump on a skiing piste. 

verb
  • To ski over a course of humps or bumps. 

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