6 letter words:
nubbin10,
bunnia8,
5 letter words:
bunia7,
nubia7,
unban7,
4 letter words:
babu8,
buba8,
bani6,
buna6,
bunn6,
nain4,
unai4,
3 letter words:
abb7,
bib7,
bub7,
ban5,
bin5,
bun5,
nab5,
nib5,
nub5,
ain3,
ani3,
ann3,
inn3,
nan3,
nun3,
uni3,
2 letter words:
ab4,
ba4,
bi4,
ai2,
an2,
in2,
na2,
nu2,
un2,