Disagrer or Disagreer: How To spell?
The word Disagrer is misspelled against Disagreer, a noun meaning "One who disagrees."
Disagreer has double "ee" is mispronounced as "e"Remember double 'EE' in between the strings Disagr & r which should not be misspelled with single 'E'
Wrong Spelling:  Disagr-e-r  Correct Spelling:  Disagr-ee-r 
Find more wrongly spelled words of Disagreer to spell it well.