Concesion or Concession: How To spell?
The word Concesion is misspelled against Concession, meaning "Anything granted or yielded, or admitted in response to a demand, petition, or claim."
Concession has double "ss" is mispronounced as "s"Remember double 'SS' in between the strings conce & ion which should not be misspelled with single 'S'
Wrong Spelling:  conce-s-ion  Correct Spelling:  conce-ss-ion 
Find more incorrect spellings of Concession to spell right way.