11 letter words
TAMPERPROOF​20
10 letter words
THORNPROOF​18
9 letter words
THEIRSELF​15
THICKLEAF​21
8 letter words
TRADEOFF​15
THEMSELF​16
TIPSTAFF​16
7 letter words (4 words)
THEREOF​13
THYSELF​16
TAKEOFF​17
TURNOFF​13
6 letter words
TARIFF​12
TIPOFF​14
5 letter words (6 words)
THIEF​11
THELF​11
TRAYF​11
TREIF​8
TREYF​11
TRIFF​11
4 letter words (7 words)
TURF​7
TIFF​10
TUFF​10
TREF​7
TOFF​10
TEFF​10
TERF​7
3 letter words
TEF​6