genuine vs sure

genuine

adj
  • Not counterfeit, spurious, false, or adulterated 

  • Belonging to, or proceeding from the original stock; native 

sure

adj
  • Certain to act or be a specified way. 

  • Physically secure and certain, non-failing, reliable. 

  • Certain in one's knowledge or belief. 

intj
  • Yes, expressing noncommittal agreement or consent. 

  • Yes; of course. 

  • You're welcome; polite response to being thanked. 

adv
  • Without doubt, certainly. 

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