Puisance or Puissance: How To spell?
The word Puisance is misspelled against Puissance, meaning "strength"
Puissance has double "ss" is mispronounced as "s"Remember double 'SS' in between the strings pui & ance which should not be misspelled with single 'S'
Wrong Spelling:  pui-s-ance  Correct Spelling:  pui-ss-ance 
Check more misspelled words of Puissance to spell it correct.