affair vs gesture

affair

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

  • 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 person with whom someone has an adulterous relationship. 

  • 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. 

  • A material object (vaguely designated). 

gesture

noun
  • An act or a remark that serves as a formality or as a sign of attitude. 

  • A motion made with a pointing device, or on a touchscreen, that is recognised by the system as a command. 

  • A motion of the limbs or body, especially one made to emphasize speech. 

verb
  • To make a gesture or gestures. 

  • To accompany or illustrate with gesture or action. 

  • To express something by a gesture or gestures. 

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