5 letter words:
stack11,
tacks11,
4 letter words:
kaks12,
cask10,
sack10,
tack10,
kats8,
skat8,
taks8,
task8,
acts6,
cast6,
cats6,
scat6,
3 letter words:
kak11,
ask7,
kas7,
kat7,
ska7,
tak7,
tsk7,
act5,
cat5,
sac5,
sat3,
tas3,
2 letter words:
ka6,
as2,
at2,
st2,
ta2,