market vs swap out

market

verb
  • To deal in a market; to buy or sell; to make bargains for provisions or goods. 

  • To make (products or services) available for sale and promote them. 

  • To sell. 

  • To shop in a market; to attend a market. 

noun
  • A gathering of people for the purchase and sale of merchandise at a set time, often periodic. 

  • A grocery store 

  • A group of potential customers for one's product. 

  • A formally organized, sometimes monopolistic, system of trading in specified goods or effects. 

  • City square or other fairly spacious site where traders set up stalls and buyers browse the merchandise. 

  • A geographical area where a certain commercial demand exists. 

  • The sum total traded in a process of individuals trading for certain commodities. 

swap out

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. 

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