functionality vs success

functionality

noun
  • The ability to do a task, performance, or execution; a set of functions that something is able or equipped to perform. 

  • The presence of a functional group. 

  • In United States trademark law, the tendency of a product design to serve a function other than identification of the product, preventing that design from being protected as a trademark. 

success

noun
  • The achievement of one's aim or goal. 

  • Financial profitability. 

  • One who, or that which, achieves assumed goals. 

  • The fact of getting or achieving wealth, respect, or fame. 

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