6 letter words:
future9,
repugn9,
turfen9,
unturf9,
punter8,
puture8,
tuneup8,
turnup8,
unpure8,
upturn8,
gunter7,
gurnet7,
urgent7,
untrue6,
5 letter words:
fugue9,
grufe9,
getup8,
purge8,
unpeg8,
erupt7,
prent7,
prune7,
prunt7,
uprun7,
upter7,
grunt6,
unget6,
tuner5,
urent5,
4 letter words:
frug8,
fugu8,
fung8,
enuf7,
fent7,
fern7,
fret7,
pung7,
reft7,
terf7,
tref7,
turf7,
pent6,
pern6,
pert6,
puer6,
punt6,
pure6,
gent5,
genu5,
gert5,
gren5,
grue5,
gurn5,
guru5,
rung5,
tegu5,
trug5,
tung5,
urge5,
rent4,
rune4,
runt4,
tern4,
true4,
tune4,
turn4,
3 letter words:
feg7,
fug7,
eft6,
erf6,
fen6,
fer6,
fet6,
feu6,
fun6,
fur6,
gup6,
nef6,
peg6,
pug6,
ref6,
tef6,
nep5,
pen5,
per5,
pet5,
pre5,
pun5,
pur5,
put5,
rep5,
tup5,
urp5,
eng4,
erg4,
gen4,
get4,
gnu4,
gue4,
gun4,
gur4,
gut4,
neg4,
reg4,
rug4,
teg4,
tug4,
ern3,
net3,
nur3,
nut3,
ren3,
ret3,
rue3,
run3,
rut3,
ten3,
tun3,
ure3,
urn3,
ute3,
utu3,
2 letter words:
ef5,
fe5,
pe4,
up4,
gu3,
ug3,
en2,
er2,
et2,
ne2,
nu2,
re2,
te2,
un2,
ur2,
ut2,