TRETS is a playable word

tret Scrabble® Dictionary

noun
pl. trets
an allowance formerly paid to purchasers for waste incurred in transit
22 Playable Words can be made from "TRETS"
   2-Letter Words (5 found)
   3-Letter Words (8 found)
   4-Letter Words (8 found)
   5-Letter Words (1 found)