DIFFER is a playable word

differ Scrabble® Dictionary

verb
differed, differing, differs
to be unlike
41 Playable Words can be made from "DIFFER"
   2-Letter Words (8 found)
   3-Letter Words (16 found)
   4-Letter Words (11 found)
   5-Letter Words (4 found)
   6-Letter Words (2 found)