7 letter words:
bonanza18,
5 letter words:
bazoo16,
aboon7,
4 letter words:
bozo15,
azan13,
azon13,
zona13,
zoon13,
boon6,
anna4,
anoa4,
anon4,
naan4,
nana4,
nona4,
noon4,
3 letter words:
azo12,
zoa12,
zoo12,
aba5,
abo5,
baa5,
ban5,
boa5,
boo5,
nab5,
nob5,
oba5,
ana3,
nan3,
noo3,
ono3,
2 letter words:
za11,
ab4,
ba4,
bo4,
aa2,
an2,
na2,
no2,
on2,