NULLIFY is a playable word

nullify Scrabble® Dictionary

verb
nullified, nullifying, nullifies
to make useless or ineffective
30 Playable Words can be made from "NULLIFY"
   2-Letter Words (5 found)
   3-Letter Words (11 found)
   4-Letter Words (10 found)
   5-Letter Words (3 found)
   7-Letter Words (1 found)