immigration vs withdrawal

immigration

noun
  • The act of immigrating; the passing or coming into a country of which one is not native born for the purpose of permanent residence. 

  • The process of going through immigration checks at a border checkpoint. 

withdrawal

noun
  • A method of birth control which consists of removing the penis from the vagina before ejaculation. 

  • An act of withdrawing or a state of being withdrawn. 

  • The sum of money taken from a bank account. 

  • Receiving from someone's care what one has earlier entrusted to them. Usually refers to money. 

  • A type of metabolic shock the body undergoes when a substance, usually a toxin such as heroin, to which a patient is dependent is withheld. Sometimes used with the substance as modifier. 

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