notice vs placard

notice

noun
  • A written or printed announcement. 

  • A published critical review of a play or the like. 

  • Advance notification of termination of employment, given by an employer to an employee or vice versa. 

  • The act of observing; perception. 

  • A formal notification or warning. 

  • Prior notification. 

verb
  • To be noticeable; to show. 

  • To become aware of; to observe. 

placard

noun
  • A sheet of paper or cardboard with a written or printed announcement on one side for display in a public place. 

  • A kind of stomacher, often adorned with jewels, worn in the fifteenth century and later. 

  • An extra plate on the lower part of the breastplate or backplate of armour. 

  • The woodwork and frame of the door of a closet etc. 

verb
  • To announce with placards. 

  • To affix a placard to. 

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