7 letter words:
tubaist9,
6 letter words:
tubist8,
autist6,
5 letter words:
abuts7,
baits7,
batts7,
battu7,
bitts7,
butts7,
tabus7,
tsuba7,
tubas7,
sutta5,
tauts5,
4 letter words:
abut6,
bait6,
bast6,
bats6,
batt6,
bias6,
bits6,
bitt6,
bust6,
buts6,
butt6,
isba6,
stab6,
stub6,
suba6,
tabs6,
tabu6,
tuba6,
tubs6,
aits4,
sati4,
stat4,
suit4,
tats4,
taus4,
taut4,
tits4,
tuis4,
tuts4,
utas4,
3 letter words:
abs5,
bas5,
bat5,
bis5,
bit5,
bus5,
but5,
sab5,
sib5,
sub5,
tab5,
tub5,
ais3,
ait3,
att3,
its3,
sat3,
sau3,
sit3,
tas3,
tat3,
tau3,
tis3,
tit3,
tui3,
tut3,
uta3,
uts3,
2 letter words:
ab4,
ba4,
bi4,
ai2,
as2,
at2,
is2,
it2,
si2,
ta2,
ti2,
us2,
ut2,