bonus vs exceptional

bonus

noun
  • Something extra that is good; an added benefit. 

  • An extra sum given as a premium, e.g. to an employee or to a shareholder. 

  • An addition to the player's score based on performance, e.g. for time remaining. 

  • One or more free throws awarded to a team when the opposing team has accumulated enough fouls. 

verb
  • To pay a bonus, premium 

exceptional

noun
  • An exception, or something having an exceptional value 

adj
  • Corresponding to something of lower dimension under a birational correspondence. 

  • Forming an exception; not ordinary; uncommon; rare. 

  • Better than the average; superior due to exception or rarity. 

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