GNASHING is a playable word

gnash Scrabble® Dictionary

verb
gnashed, gnashing, gnashes
to grind the teeth together
90 Playable Words can be made from "GNASHING"
   2-Letter Words (13 found)
   3-Letter Words (29 found)
   5-Letter Words (10 found)
   6-Letter Words (4 found)
   7-Letter Words (2 found)
   8-Letter Words (2 found)