9 letter words:
thumbtack22,
7 letter words:
hackbut18,
6 letter words:
chabuk17,
5 letter words:
thack14,
amuck13,
batch12,
butch12,
match12,
mutch12,
thumb12,
battu7,
4 letter words:
hack13,
huck13,
back12,
buck12,
mack12,
muck12,
bach11,
cham11,
chub11,
chum11,
haku11,
khat11,
mach11,
much11,
tack10,
tuck10,
baht9,
bath9,
bhut9,
chat9,
habu9,
math9,
tach9,
haut7,
that7,
abut6,
batt6,
butt6,
matt6,
maut6,
mutt6,
tabu6,
tact6,
tuba6,
taut4,
3 letter words:
kab9,
bah8,
ham8,
hub8,
hum8,
auk7,
bam7,
bum7,
cab7,
cam7,
cub7,
cum7,
kat7,
mac7,
hat6,
hut6,
act5,
amu5,
bat5,
but5,
cat5,
cut5,
mat5,
mut5,
tab5,
tam5,
tub5,
att3,
tat3,
tau3,
tut3,
uta3,
2 letter words:
hm7,
ka6,
ah5,
ha5,
uh5,
ab4,
am4,
ba4,
ma4,
mu4,
um4,
at2,
ta2,
ut2,