gimmick vs stand in

gimmick

noun
  • A clever ploy or strategy. 

  • A trick or device used to attain some end. 

  • A night out with one's friends. 

  • A gimmick capacitor. 

verb
  • To rig or set up with a trick or device. 

stand in

noun
  • A substitute; a replacement. 

verb
  • To substitute for; to replace; (theater) to serve as an understudy. 

  • To make one of a party in a bet or other speculation. 

  • To take a side in a dispute. 

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