5 letter words:
abaft10,
fouat8,
tafia8,
about7,
biota7,
bitou7,
oubit7,
4 letter words:
baft9,
bufo9,
faut7,
fiat7,
tofu7,
tufa7,
abut6,
bait6,
bito6,
boat6,
bota6,
bout6,
buat6,
obia6,
obit6,
tabi6,
tabu6,
tuba6,
aitu4,
atua4,
auto4,
iota4,
3 letter words:
fab8,
fib8,
fob8,
fub8,
aft6,
auf6,
faa6,
fat6,
fit6,
fou6,
oaf6,
oft6,
ufo6,
aba5,
abo5,
baa5,
bat5,
bio5,
bit5,
boa5,
boi5,
bot5,
but5,
oba5,
obi5,
tab5,
tub5,
aia3,
ait3,
aua3,
ita3,
oat3,
out3,
tai3,
tao3,
tau3,
tui3,
uta3,
2 letter words:
fa5,
if5,
of5,
ab4,
ba4,
bi4,
bo4,
ob4,
aa2,
ai2,
at2,
io2,
it2,
oi2,
ou2,
ta2,
ti2,
to2,
ut2,