HELMETS is a playable word

helmet Scrabble® Dictionary

verb
helmeted, helmeting, helmets
to supply with a helmet (a protective covering for the head)
88 Playable Words can be made from "HELMETS"
   2-Letter Words (10 found)
   3-Letter Words (23 found)
   6-Letter Words (3 found)
   7-Letter Words (1 found)