bonded vs for a fact

bonded

adj
  • Joined securely, either with adhesive, heat process or pressure. 

  • Secured by bond. 

for a fact

adv
  • Used other than figuratively or idiomatically: see for, a, fact. 

  • Without doubt. 

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