side bet vs speculation

side bet

noun
  • 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. 

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

speculation

noun
  • A card game in which the players buy from one another trumps or whole hands, upon a chance of getting the highest trump dealt, which entitles the holder to the pool of stakes. 

  • The act or process of reasoning a priori from premises given or assumed. 

  • An investment involving higher-than-normal risk in order to obtain a higher-than-normal return. 

  • A conclusion to which the mind comes by speculating; mere theory; notion; conjecture. 

  • The act or practice of buying land, goods, shares, etc., in expectation of selling at a higher price, or of selling with the expectation of repurchasing at a lower price; a trading on anticipated fluctuations in price, as distinguished from trading in which the profit expected is the difference between the retail and wholesale prices, or the difference of price in different markets. 

  • The process of thinking or meditating on a subject. 

  • The process of anticipating which branch of code will be chosen and executing it in advance. 

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