5 letter words:
abaft10,
4 letter words:
baft9,
faut7,
tufa7,
abut6,
buat6,
tabu6,
tuba6,
atua4,
3 letter words:
fab8,
fub8,
aft6,
auf6,
faa6,
fat6,
aba5,
baa5,
bat5,
but5,
tab5,
tub5,
aua3,
tau3,
uta3,
utu3,
2 letter words:
fa5,
ab4,
ba4,
aa2,
at2,
ta2,
ut2,