5 letter words:
aback13,
babka13,
kabab13,
kabob13,
cabob11,
4 letter words:
hack13,
hock13,
back12,
bock12,
bach11,
cobb10,
chao9,
abba8,
baba8,
3 letter words:
kab9,
kob9,
bah8,
hob8,
bob7,
cab7,
cob7,
koa7,
oak7,
oka7,
aah6,
aha6,
hao6,
aba5,
abo5,
baa5,
boa5,
oba5,
oca5,
2 letter words:
ka6,
ah5,
ha5,
ho5,
oh5,
ab4,
ba4,
bo4,
aa2,