Supposer or Supposeer: How To spell?
The word Supposer is misspelled against Supposeer, a noun meaning "One who supposes."
Supposeer has double "ee" is mispronounced as "e"Remember double 'EE' in between the strings Suppos & r which should not be misspelled with single 'E'
Wrong Spelling:  Suppos-e-r  Correct Spelling:  Suppos-ee-r 
Check more misspelled words of Supposeer to spell it correct.