Disonancy or Dissonancy: How To spell?
The word Disonancy is misspelled against Dissonancy, a noun meaning "Discord; dissonance."
Dissonancy has double "ss" is mispronounced as "s"Remember double 'SS' in between the strings di & onancy which should not be misspelled with single 'S'
Wrong Spelling:  di-s-onancy  Correct Spelling:  di-ss-onancy 
Find more incorrect spellings of Dissonancy to spell right way.