cardinal number vs city

cardinal number

noun
  • A word that expresses a countable quantity; a cardinal numeral. 

  • A generalized kind of number used to denote the size of a set, including infinite sets. 

  • A number used to denote quantity; a counting number; a cardinal. 

city

noun
  • A large amount of something (used after the noun). 

  • A large settlement, bigger than a town; sometimes with a specific legal definition, depending on the place. 

  • A settlement granted special status by royal charter or letters patent; traditionally, a settlement with a cathedral regardless of size. 

  • The central business district; downtown. 

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