adventure vs side bet

adventure

noun
  • A mercantile or speculative enterprise of hazard; a venture; a shipment by a merchant on his own account. 

  • A text adventure or an adventure game. 

  • A remarkable occurrence; a striking event. 

  • The encountering of risks; a bold undertaking, in which dangers are likely to be encountered, and the issue is staked upon unforeseen events; a daring feat. 

  • A feeling of desire for new and exciting things. 

side bet

noun
  • An investment or risk undertaken by a company that is not part of its core business. 

  • A bet on some aspect of a game or competition that is not the main bet of the game or the prize of the competition; proposition bet. 

  • An investment of time, money, or resources that reinforces one's commitment to a course of action. 

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