alien vs expatriate

alien

noun
  • A foreigner residing in a country. 

  • Any life form of extraterrestrial or extradimensional origin. 

  • A person, animal, plant, or other thing which is from outside the family, group, organization, or territory under consideration. 

  • One excluded from certain privileges; one alienated or estranged. 

adj
  • Not belonging to the same country, land, or government, or to the citizens or subjects thereof; foreign. 

  • Very unfamiliar, strange, or removed. 

  • Pertaining to extraterrestrial life; typical of an extraterrestrial creature. 

verb
  • To estrange; to alienate. 

  • To transfer the ownership of something. 

expatriate

noun
  • One who lives outside one's own country. 

  • One who has been banished from one's own country. 

verb
  • To withdraw from one’s native country. 

  • To banish; to drive or force (a person) from his own country; to make an exile of. 

  • To renounce the rights and liabilities of citizenship where one is born and become a citizen of another country. 

adj
  • Living outside of one's own country. 

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