5 letter words:
abaft10,
katas9,
takas9,
tufas8,
abuts7,
tabus7,
tsuba7,
tubas7,
4 letter words:
kafs11,
bask10,
busk10,
kabs10,
fabs9,
fubs9,
auks8,
kaas8,
kata8,
kats8,
skat8,
skua8,
taka8,
task8,
tusk8,
fast7,
fats7,
tufa7,
abas6,
abut6,
baas6,
bast6,
bats6,
bust6,
buts6,
stab6,
stub6,
suba6,
tabs6,
tabu6,
tuba6,
tubs6,
taus4,
utas4,
3 letter words:
kaf10,
kab9,
fab8,
fub8,
ask7,
auk7,
kas7,
kat7,
ska7,
suk7,
tsk7,
aft6,
fas6,
fat6,
aba5,
abs5,
baa5,
bas5,
bat5,
bus5,
but5,
sab5,
sub5,
tab5,
tub5,
aas3,
sat3,
sau3,
tas3,
tau3,
uta3,
uts3,
2 letter words:
ka6,
fa5,
ab4,
ba4,
aa2,
as2,
at2,
ta2,
us2,
ut2,