hire vs swap out

hire

verb
  • To exchange the services of for remuneration. 

  • To occupy premises in exchange for rent. 

  • To employ; to obtain the services of (a person) in exchange for remuneration; to give someone a job. 

  • To accept employment. 

  • To obtain the services of in return for fixed payment. 

  • To accomplish by paying for services. 

  • (neologism) (in the Jobs-to-be-Done Theory) To buy something in order for it to perform a function, to do a job 

noun
  • Payment for the temporary use of something. 

  • A person who has been hired, especially in a cohort. 

  • The state of being hired, or having a job; employment. 

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 hire and swap out occurred in a corpus of books? (source: Google Ngram Viewer )