Prof or Proof: How To spell?
The word Prof is misspelled against Proof, a noun meaning "A process for testing the accuracy of an operation performed. Cf. Prove, v. t., 5."
Proof has double "oo" is mispronounced as "o"Remember double 'OO' in between the strings pr & f which should not be misspelled with single 'O'
Wrong Spelling:  pr-o-f  Correct Spelling:  pr-oo-f 
Find more incorrect spellings of Proof to spell right way.