acquaintance vs migrant

acquaintance

noun
  • A state of being acquainted with a person; originally indicating friendship, intimacy, but now suggesting a slight knowledge less deep than that of friendship; acquaintanceship. 

  • Personal knowledge (with a specific subject etc.). 

  • Such people collectively; one's circle of acquaintances (with plural concord). 

  • A person or persons with whom one is acquainted. 

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 acquaintance and migrant occurred in a corpus of books? (source: Google Ngram Viewer )