6 letter words:
frutex16,
4 letter words:
fret7,
reft7,
terf7,
tref7,
turf7,
true4,
3 letter words:
rex10,
tex10,
tux10,
eft6,
erf6,
fer6,
fet6,
feu6,
fur6,
ref6,
tef6,
ret3,
rue3,
rut3,
ure3,
ute3,
2 letter words:
ex9,
xu9,
ef5,
fe5,
er2,
et2,
re2,
te2,
ur2,
ut2,