Excomunion or Excommunion: How To spell?
The word Excomunion is misspelled against Excommunion, a noun meaning "A shutting out from communion; excommunication."
Excommunion has double "mm" is mispronounced as "m"Remember double 'MM' in between the strings exco & union which should not be misspelled with single 'M'
Wrong Spelling:  exco-m-union  Correct Spelling:  exco-mm-union 
Check more misspelled words of Excommunion to spell it correct.