6 letter words:
forint9,
turion6,
5 letter words:
fount8,
front8,
fruit8,
futon8,
unfit8,
intro5,
nitro5,
rutin5,
4 letter words:
fino7,
firn7,
foin7,
font7,
fort7,
four7,
frit7,
info7,
rift7,
tofu7,
turf7,
inro4,
into4,
iron4,
noir4,
nori4,
riot4,
roti4,
rout4,
ruin4,
runt4,
tiro4,
tori4,
torn4,
tour4,
trio4,
turn4,
unit4,
unto4,
3 letter words:
fin6,
fir6,
fit6,
fon6,
for6,
fou6,
fro6,
fun6,
fur6,
oft6,
rif6,
ion3,
nit3,
nor3,
not3,
nut3,
ort3,
our3,
out3,
rin3,
rot3,
run3,
rut3,
tin3,
ton3,
tor3,
tui3,
tun3,
urn3,
2 letter words:
if5,
of5,
in2,
it2,
no2,
nu2,
oi2,
on2,
or2,
ti2,
to2,
un2,
ut2,