UNCASE is a playable word

uncase Scrabble® Dictionary

verb
uncased, uncasing, uncases
to remove from a case
50 Playable Words can be made from "UNCASE"
   2-Letter Words (10 found)
   3-Letter Words (20 found)
   4-Letter Words (12 found)
   5-Letter Words (6 found)
   6-Letter Words (2 found)