affair vs assignment

affair

noun
  • A person with whom someone has an adulterous relationship. 

  • An action or engagement not of sufficient magnitude to be called a battle. 

  • An adulterous relationship (from affaire de cœur, affair of the heart). 

  • A romantic relationship with someone who is not one's regular partner (boyfriend, girlfriend). 

  • Something which is done or is to be done; business of any kind, commercial, professional, or public. 

  • A party or social gathering, especially of a formal nature. 

  • Any proceeding or action which it is wished to refer to or characterize vaguely. 

  • A material object (vaguely designated). 

assignment

noun
  • The categorization of persons as belonging to the male or female sex. 

  • A transfer of a right or benefit from one person to another. 

  • A document that effects this transfer. 

  • The act of assigning; the allocation of a job or a set of tasks. 

  • An assigned task. 

  • An operation that assigns a value to a variable. 

  • A position to which someone is assigned. 

  • A task given to students, such as homework or coursework. 

  • The categorization of something as belonging to a specific category. 

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