broadside vs flashcard

broadside

noun
  • A large sheet of paper, printed on one side and folded. 

  • The printed lyrics of a folk song or ballad; a broadsheet. 

  • A forceful attack, be it written or spoken. 

  • One side of a ship above the water line; all the guns on one side of a warship; their simultaneous firing. 

verb
  • To collide with something side-on. 

adv
  • Sideways; with the side turned to the direction of some object. 

flashcard

noun
  • A card used to aid rote memorization. One side of the card contains data of one kind, or a question, and the other side contains the associated response which one wants to memorize. For example, one side could contain an English word, and the other side the Spanish translation. 

  • A solid-state digital memory storage format, commonly found on computers, digital cameras and cellphones. 

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