TREAD is a playable word

tread Scrabble® Dictionary

verb
trod or trode or treaded, trodden, treading, treads
to walk on, over, or along
44 Playable Words can be made from "TREAD"
   2-Letter Words (12 found)
   3-Letter Words (16 found)
   4-Letter Words (10 found)
   5-Letter Words (6 found)