6 letter words:
nonfat9,
5 letter words:
afoot8,
fanon8,
fouat8,
fount8,
futon8,
naunt5,
tauon5,
4 letter words:
fano7,
faun7,
faut7,
font7,
foot7,
tofu7,
tufa7,
anno4,
anon4,
aunt4,
auto4,
nona4,
noon4,
nota4,
noun4,
nout4,
onto4,
oont4,
toon4,
toun4,
tuan4,
tuna4,
unto4,
3 letter words:
aft6,
auf6,
fan6,
fat6,
fon6,
fou6,
fun6,
oaf6,
oft6,
oof6,
ufo6,
ann3,
ant3,
nan3,
nat3,
non3,
noo3,
not3,
nun3,
nut3,
oat3,
ono3,
oon3,
oot3,
out3,
tan3,
tao3,
tau3,
ton3,
too3,
tun3,
uta3,
2 letter words:
fa5,
of5,
an2,
at2,
na2,
no2,
nu2,
on2,
oo2,
ou2,
ta2,
to2,
un2,
ut2,