Adibility or Addibility: How To spell?
The word Adibility is misspelled against Addibility, a noun meaning "The quantity of being addible; capability of addition."
Addibility has double "dd" is mispronounced as "d"Remember double 'DD' in between the strings A & ibility which should not be misspelled with single 'D'
Wrong Spelling:  A-d-ibility  Correct Spelling:  A-dd-ibility 
Find more wrongly spelled words of Addibility to spell it well.