ADD vs puck

ADD

noun
  • A designation on prerecorded compact discs indicating that the contents were recorded in analog but mixed and mastered in digital; compare AAD, DAD, DDD. 

puck

noun
  • A hard rubber disc; any other flat disc meant to be hit across a flat surface in a game. 

  • billy goat 

  • A pointing device with a crosshair. 

  • A body position between the pike and tuck positions, with knees slightly bent and folded in; open tuck. 

  • A penalty shot. 

  • An object shaped like a puck. 

verb
  • To hit, strike. 

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