5 letter words:
babul9,
bubal9,
tubal7,
adult6,
4 letter words:
babu8,
blab8,
blub8,
bulb8,
bald7,
baud7,
daub7,
abut6,
blat6,
tabu6,
tuba6,
auld5,
daut5,
dual5,
laud5,
latu4,
3 letter words:
bub7,
bad6,
bud6,
dab6,
dub6,
alb5,
bal5,
bat5,
but5,
lab5,
tab5,
tub5,
dal4,
lad4,
tad4,
alt3,
lat3,
tau3,
uta3,
2 letter words:
ab4,
ba4,
ad3,
al2,
at2,
la2,
ta2,
ut2,