rex vs tycoon

rex

noun
  • An animal which has a genetic recessive variation that causes the guard hairs to be very short or fully lacking. 

tycoon

noun
  • A wealthy and powerful business person. 

  • A type of Roblox game in which players earn money which is then used to purchase upgrades. 

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