Defness or Deafness: How To spell?
The word Defness is misspelled against Deafness, a noun meaning "Incapacity of perceiving sounds; the state of the organs which prevents the impression which constitute hearing; want of the sense of hearing."
Deafness has vowels 'ea' together mispronounced as 'e'Word contains consecutive vowels 'EA' in between alphabets d & fness is misspelled as 'E'
Wrong Spelling:  d-e-fness  Correct Spelling:  d-ea-fness 
Explore spell check of Deafness to spell without errors.