Difused or Diffused: How To spell?
The word Difused is misspelled against Diffused, an adjective meaning "Spread abroad; dispersed; loose; flowing; diffuse."
Diffused has double "ff" is mispronounced as "f"Remember double 'FF' in between the strings Di & used which should not be misspelled with single 'F'
Wrong Spelling:  Di-f-used  Correct Spelling:  Di-ff-used 
Check more misspelled words of Diffused to spell it correct.