5 letter words:
babus9,
bubas9,
bubus9,
4 letter words:
abbs8,
babu8,
bibs8,
buba8,
bubs8,
bubu8,
sibb8,
bias6,
isba6,
suba6,
3 letter words:
abb7,
bib7,
bub7,
abs5,
bas5,
bis5,
bus5,
sab5,
sib5,
sub5,
ais3,
sai3,
sau3,
sui3,
2 letter words:
ab4,
ba4,
bi4,
ai2,
as2,
is2,
si2,
us2,