9 letter words:
blackbutt19,
5 letter words:
black13,
baulk11,
caulk11,
babul9,
bubal9,
taluk9,
battu7,
blatt7,
claut7,
tubal7,
4 letter words:
back12,
buck12,
balk10,
bauk10,
bulk10,
calk10,
cauk10,
lack10,
luck10,
tack10,
tuck10,
babu8,
blab8,
blub8,
buba8,
bulb8,
club8,
kula8,
kuta8,
talk8,
abut6,
balu6,
batt6,
blat6,
buat6,
butt6,
caul6,
clat6,
cult6,
tabu6,
tact6,
talc6,
tuba6,
latu4,
tatu4,
taut4,
3 letter words:
kab9,
abb7,
auk7,
bac7,
bub7,
cab7,
cub7,
kat7,
tak7,
act5,
alb5,
bal5,
bat5,
but5,
cat5,
cut5,
lab5,
lac5,
tab5,
tub5,
alt3,
att3,
lat3,
tat3,
tau3,
tut3,
uta3,
2 letter words:
ka6,
ab4,
ba4,
al2,
at2,
la2,
ta2,
ut2,