5 letter words:
nabob9,
nubia7,
4 letter words:
babu8,
bubo8,
bani6,
buna6,
obia6,
naoi4,
unai4,
3 letter words:
bib7,
bob7,
bub7,
abo5,
ban5,
bin5,
bio5,
boa5,
bun5,
nab5,
nib5,
nob5,
nub5,
oba5,
obi5,
ain3,
ani3,
ion3,
2 letter words:
ab4,
ba4,
bi4,
bo4,
ai2,
an2,
in2,
na2,
no2,
nu2,
oi2,
on2,
un2,