5 letter words:
tufas8,
abuts7,
tabus7,
tsuba7,
tubas7,
4 letter words:
fabs9,
fubs9,
fast7,
fats7,
tufa7,
abut6,
bast6,
bats6,
bust6,
buts6,
stab6,
stub6,
suba6,
tabs6,
tabu6,
tuba6,
tubs6,
taus4,
utas4,
3 letter words:
fab8,
fub8,
aft6,
fas6,
fat6,
abs5,
bas5,
bat5,
bus5,
but5,
sab5,
sub5,
tab5,
tub5,
sat3,
sau3,
tas3,
tau3,
uta3,
uts3,
2 letter words:
fa5,
ab4,
ba4,
as2,
at2,
ta2,
us2,
ut2,