receipt vs swap out

receipt

verb
  • To give or write a receipt (for something). 

  • To put a receipt on, as by writing or stamping; to mark a bill as having been paid. 

noun
  • A quantity or amount received; takings. 

  • (A piece of) evidence, documentation, etc. to prove one's past actions, accomplishments, etc. 

  • (A piece of) evidence (e.g. documentation or screen captures) of past wrongdoing. 

  • A written acknowledgment that a specified article or sum of money has been received. 

  • The act of receiving, or the fact of having been received. 

swap out

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

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

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

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. 

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