5 letter words:
fount8,
futon8,
about7,
baton7,
tabun7,
tauon5,
4 letter words:
fano7,
faun7,
font7,
tofu7,
tufa7,
abut6,
boat6,
bota6,
bout6,
buna6,
bunt6,
tabu6,
tuba6,
aunt4,
auto4,
nota4,
tuna4,
unto4,
3 letter words:
fab8,
fob8,
fub8,
aft6,
fan6,
fat6,
fon6,
fou6,
fun6,
oaf6,
oft6,
abo5,
ban5,
bat5,
boa5,
bot5,
bun5,
but5,
nab5,
nob5,
nub5,
oba5,
tab5,
tub5,
ant3,
not3,
nut3,
oat3,
out3,
tan3,
tao3,
tau3,
ton3,
tun3,
uta3,
2 letter words:
fa5,
of5,
ab4,
ba4,
bo4,
an2,
at2,
na2,
no2,
nu2,
on2,
ta2,
to2,
un2,
ut2,