5 letter words:
bobak13,
kabob13,
4 letter words:
bauk10,
boak10,
bouk10,
babu8,
boab8,
boba8,
buba8,
bubo8,
3 letter words:
bok9,
kab9,
kob9,
abb7,
auk7,
bob7,
bub7,
koa7,
oak7,
oka7,
ouk7,
abo5,
boa5,
oba5,
2 letter words:
ka6,
ko6,
ab4,
ba4,
bo4,
ob4,
ou2,