7 letter words:
grutten8,
turgent8,
6 letter words:
future9,
tufter9,
gurnet7,
gutter7,
urgent7,
nutter6,
untrue6,
5 letter words:
fugue9,
grunt6,
tuner5,
utter5,
4 letter words:
frug8,
fugu8,
enuf7,
fern7,
fret7,
reft7,
tref7,
tuft7,
turf7,
gent5,
genu5,
grue5,
guru5,
rung5,
trug5,
tung5,
urge5,
nett4,
rent4,
rune4,
runt4,
tent4,
tern4,
tret4,
true4,
tune4,
turn4,
tutu4,
3 letter words:
fug7,
eft6,
fen6,
fer6,
fet6,
feu6,
fun6,
fur6,
ref6,
eng4,
erg4,
gen4,
get4,
gnu4,
gun4,
gut4,
neg4,
reg4,
rug4,
teg4,
tug4,
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,