TRUE is a playable word

true Scrabble® Dictionary

adjective
truer, truest
consistent with fact or reality
verb
trued, truing or trueing, trues
to bring to conformity with a standard or requirement
10 Playable Words can be made from "TRUE"
   2-Letter Words (5 found)
   3-Letter Words (4 found)
   4-Letter Words (1 found)