amount vs fee

amount

verb
  • To be the same as or equivalent to. 

  • To total or evaluate. 

noun
  • The number (the sum) of elements in a set. 

  • A quantity or volume. 

  • The total, aggregate or sum of material (not applicable to discrete numbers or units or items in standard English). 

fee

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

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

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

  • 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. 

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