OVERKILL is a playable word

overkill Scrabble® Dictionary

verb
overkilled, overkilling, overkills
to destroy with more nuclear force than required
88 Playable Words can be made from "OVERKILL"
   2-Letter Words (10 found)
   3-Letter Words (23 found)
   6-Letter Words (3 found)
   8-Letter Words (1 found)