crown prince vs mogul

crown prince

noun
  • A person expected to inherit or take over an enterprise or undertaking once its current manager retires or dies. 

  • A person designated and raised to become the next emperor. 

  • A person designated and raised to become the next king. 

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 crown prince and mogul occurred in a corpus of books? (source: Google Ngram Viewer )