The word Difered is misspelled against Differed, which is past tense of "Differ"
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Differed has double "ff" is mispronounced as "f"
Remember double 'FF' in between the strings Di & ered which should not be misspelled with single 'F'
Wrong Spelling: Di-f-ered
Correct Spelling: Di-ff-ered
Find more wrongly spelled words of Differed to spell it well.