TOUGH is a playable word

tough Scrabble® Dictionary

adjective
tougher, toughest
strong and resilient
verb
toughed, toughing, toughs
to endure hardship
23 Playable Words can be made from "TOUGH"
   2-Letter Words (6 found)
   3-Letter Words (11 found)
   4-Letter Words (4 found)
   5-Letter Words (2 found)