affair vs venture

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). 

venture

noun
  • A risky or daring undertaking or journey. 

  • An event that is not, or cannot be, foreseen. 

  • The thing risked; especially, something sent to sea in trade. 

verb
  • To put or send on a venture or chance. 

  • to dare to engage in; to attempt without any certainty of success. Used with at or on 

  • To confide in; to rely on; to trust. 

  • To risk or offer. 

  • To undertake a risky or daring journey. 

  • To say something. 

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