Dismision or Dismission: How To spell?
The word Dismision is misspelled against Dismission, a noun meaning "Rejection; a setting aside as trivial, invalid, or unworthy of consideration."
Dismission has double "ss" is mispronounced as "s"Remember double 'SS' in between the strings dismi & ion which should not be misspelled with single 'S'
Wrong Spelling:  dismi-s-ion  Correct Spelling:  dismi-ss-ion 
Find more incorrect spellings of Dismission to spell right way.