cardboard vs poster

cardboard

noun
  • A wood-based material resembling heavy paper, used in the manufacture of boxes, cartons and signs. 

adj
  • Made of or resembling cardboard; (figurative) flat or flavorless. 

poster

noun
  • An advertisement to be posted on a pole, wall etc. to advertise something. 

  • A shot that hits a goalpost, scoring one point. 

  • A shot that hits a goalpost instead of passing into the goal. 

  • A dunk over a defending player. 

  • A picture of a celebrity, an event etc., intended to be attached to a wall. 

  • One who posts a message. 

verb
  • To decorate with posters. 

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