NIXES is a playable word

nix Scrabble® Dictionary

noun
pl. nixes or nixe
a water sprite
verb
nixed, nixing, nixes
to veto
20 Playable Words can be made from "NIXES"
   2-Letter Words (8 found)
   3-Letter Words (9 found)
   4-Letter Words (2 found)
   5-Letter Words (1 found)