5 letter words:
nabob9,
abune7,
beano7,
4 letter words:
abbe8,
babe8,
babu8,
boab8,
boba8,
buba8,
bubo8,
bane6,
bean6,
beau6,
bona6,
bone6,
boun6,
buna6,
ebon6,
nabe6,
unbe6,
aeon4,
aune4,
eoan4,
3 letter words:
abb7,
bob7,
bub7,
ebb7,
abo5,
ban5,
ben5,
boa5,
bon5,
bun5,
nab5,
neb5,
nob5,
nub5,
oba5,
obe5,
ane3,
aue3,
ean3,
eau3,
eon3,
nae3,
one3,
2 letter words:
ab4,
ba4,
be4,
bo4,
ob4,
ae2,
an2,
ea2,
en2,
na2,
ne2,
no2,
nu2,
oe2,
on2,
ou2,
un2,