6 letter words:
tufter9,
nutter6,
5 letter words:
tuner5,
utter5,
4 letter words:
enuf7,
fern7,
fret7,
reft7,
tref7,
tuft7,
turf7,
nett4,
rent4,
rune4,
runt4,
tent4,
tern4,
tret4,
true4,
tune4,
turn4,
3 letter words:
eft6,
fen6,
fer6,
fet6,
feu6,
fun6,
fur6,
ref6,
ern3,
net3,
nut3,
ret3,
rue3,
run3,
rut3,
ten3,
tet3,
tun3,
tut3,
urn3,
ute3,
2 letter words:
ef5,
fe5,
en2,
er2,
et2,
ne2,
nu2,
re2,
un2,
ut2,