modification vs swap out

modification

noun
  • The result of modifying something; a new or changed form. 

  • A change to an organism as a result of its environment that is not transmissable to offspring. 

  • the change undergone by a word when used in a construction (for instance am => 'm in I'm) 

  • The act of making a change to something while keeping its essential character intact; an alteration or adjustment. 

  • a change to a word when it is borrowed by another language 

swap out

noun
  • Anything that is swapped out for another; an exchange. 

  • A pre-prepared food item used in place of an unfinished food item in order to cut down the overall preparation time during filming. 

verb
  • To exchange (something) for (something else). (usually followed by with or for) 

  • To transfer (memory contents) into a swap file. 

  • To exchange (something or someone) for an unused (or less-used) equivalent. 

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