5 letter words:
aboon7,
4 letter words:
bank10,
bonk10,
book10,
knap10,
knob10,
knop10,
kobo10,
kaon8,
koan8,
nook8,
boon6,
poon6,
3 letter words:
kab9,
kob9,
kop9,
bap7,
bop7,
koa7,
oak7,
oka7,
abo5,
apo5,
ban5,
boa5,
boo5,
nab5,
nap5,
nob5,
oba5,
pan5,
poo5,
noo3,
ono3,
2 letter words:
ka6,
ab4,
ba4,
bo4,
op4,
pa4,
an2,
na2,
no2,
on2,