American vs Caucasian

American

adj
  • Of, from, or pertaining to the United States of America, its people, or its culture. 

  • Of, from, or pertaining to the Americas. 

  • Able to be exercised on any date between its issue and expiry. 

  • Of, from, or pertaining to British North America. 

noun
  • A citizen or inhabitant of British North America. 

  • The dialect of English spoken in and around the contiguous United States of America. 

  • A citizen or inhabitant of the United States of America. 

  • Any inhabitant of the Americas. 

  • American cheese. 

Caucasian

adj
  • Of or relating to the Caucasus region or its culture, languages, and people. 

  • Of a person: having a white complexion and European ancestry; white. 

noun
  • A white person. 

  • A group of languages spoken in the Caucasus region. 

  • A native or inhabitant of the Caucasus. 

  • Synonym of White Russian (“a cocktail consisting of coffee liqueur, milk, and vodka”) 

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