checkout vs countermove

checkout

noun
  • An inspection or investigation. 

  • The process of checking out items at a supermarket or library. 

  • A test to see if some device is functioning properly. 

  • The process of confirming and paying for an online purchase. 

  • The process of checking out of a hotel, or the latest time to vacate a room in one. 

  • The place in a supermarket where this is done. 

  • The number of points that a player scores on their final, winning visit to the oche. 

countermove

noun
  • A move in opposition or response to a preceding move. 

verb
  • To move in opposition or in retaliation. 

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