7 letter words:
backsaw18,
5 letter words:
wacks14,
aback13,
backs13,
4 letter words:
wack13,
back12,
bask10,
cask10,
kabs10,
sack10,
caws9,
swab9,
wabs9,
cabs8,
kaas8,
scab8,
abas6,
baas6,
casa6,
3 letter words:
kab9,
caw8,
wab8,
ask7,
cab7,
kas7,
ska7,
awa6,
saw6,
was6,
aba5,
abs5,
baa5,
bas5,
sab5,
sac5,
aas3,
2 letter words:
ka6,
aw5,
ab4,
ba4,
aa2,
as2,