fee vs penalty

fee

noun
  • An additional monetary payment charged for a service or good that is minor compared to the underlying cost. 

  • A right to the use of a superior's land as a stipend for certain services to be performed, typically military service. 

  • Synonym of fief: the land so held. 

  • An inheritable estate in land, whether absolute and without limitation to potential heirs (fee simple) or with limitations to particular kinds of heirs (fee tail). 

  • An inheritable estate in land held of a feudal lord on condition of performance of certain services, typically military service. 

verb
  • To reward for services performed, or to be performed; to recompense; to hire or keep in hire; hence, to bribe. 

penalty

noun
  • A payment forfeited for an early withdrawal from an account or an investment. 

  • A punishment for an infraction of the rules, often in the form of being removed from play for a specified amount of time. 

  • A legal sentence. 

  • A punishment for violating rules of procedure. 

  • A direct free kick from the penalty spot, taken after a defensive foul in the penalty box; a penalty kick. 

  • A disadvantageous consequence of a previous event. 

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