5 letter words:
baboo9,
4 letter words:
barb8,
boab8,
boba8,
boob8,
boar6,
boor6,
bora6,
broo6,
3 letter words:
abb7,
bob7,
abo5,
arb5,
bar5,
boa5,
boo5,
bor5,
bra5,
bro5,
oba5,
obo5,
orb5,
rob5,
oar3,
oor3,
ora3,
roo3,
2 letter words:
ab4,
ba4,
bo4,
ob4,
ar2,
oo2,
or2,