cover-up vs domino

cover-up

noun
  • An attempt to conceal or disguise something, especially a wrongdoing or a mistake. 

  • An item of clothing to be worn over a swimsuit while not in the water. 

domino

noun
  • A mistake in performing. 

  • The person wearing the costume. 

  • The mask itself. 

  • A country that is expected to react to events in a neighboring country, according to the domino effect. 

  • A masquerade costume consisting of a hooded robe and a mask covering the upper part of the face. 

  • A polyomino made up of two squares. 

  • A tile divided into two squares, each having 0 to 6 (or sometimes more) dots or pips (as in dice), used in the game of dominoes. 

verb
  • To cause to collapse in the manner of dominoes. 

  • To collapse in the manner of dominoes. 

How often have the words cover-up and domino occurred in a corpus of books? (source: Google Ngram Viewer )