choice vs knockback

choice

noun
  • One selection or preference; that which is chosen or decided; the outcome of a decision. 

  • Anything that can be chosen. 

  • The power to choose. 

  • Do I have a choice of what color to paint it? 

  • An option; a decision; an opportunity to choose or select something. 

  • The best or most preferable part. 

intj
  • Cool; excellent. 

adj
  • Especially good or preferred. 

knockback

noun
  • A rejection; a refusal. 

  • A blow that causes the recipient to fall or move backwards, a knock back; a recoil. 

  • Something that impedes or reverses progress; a setback. 

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