6 letter words:
banana8,
5 letter words:
bwana10,
nawab10,
aboon7,
4 letter words:
boon6,
anna4,
anoa4,
anon4,
naan4,
nana4,
nona4,
noon4,
3 letter words:
bow8,
wab8,
awa6,
awn6,
naw6,
now6,
own6,
wan6,
won6,
woo6,
aba5,
abo5,
baa5,
ban5,
boa5,
boo5,
nab5,
nob5,
oba5,
ana3,
nan3,
noo3,
ono3,
2 letter words:
aw5,
ow5,
wo5,
ab4,
ba4,
bo4,
aa2,
an2,
na2,
no2,
on2,