The word Puisance is misspelled against Puissance, meaning "strength"
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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.