expatriate vs migrant

expatriate

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

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

adj
  • Living outside of 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. 

migrant

noun
  • A person who leaves one place in order to permanently settle in another. 

  • A migratory animal, in particular a migratory bird. 

  • Traveller or worker who moves from one region or country to another. 

  • Any of various pierid butterflies of the genus Catopsilia. Also called an emigrant. 

adj
  • Migratory. 

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