commodity vs swap out

commodity

noun
  • Anything which has both a use-value and an exchange-value. 

  • Raw materials, agricultural and other primary products as objects of large-scale trading in specialized exchanges. 

  • Undifferentiated goods characterized by a low profit margin, as distinguished from branded products. 

  • Something useful or valuable. 

  • Anything movable (a good) that is bought and sold. 

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