TRIFORM is a playable word

triform Scrabble® Dictionary

adjective
having three forms
44 Playable Words can be made from "TRIFORM"
   2-Letter Words (10 found)
   3-Letter Words (16 found)
   4-Letter Words (15 found)
   5-Letter Words (1 found)
   6-Letter Words (1 found)
   7-Letter Words (1 found)