5 letter words:
bunko11,
konbu11,
4 letter words:
know11,
wonk11,
bonk10,
bouk10,
bunk10,
knob10,
knub10,
boun6,
3 letter words:
kow10,
wok10,
bok9,
kob9,
bow8,
kon7,
ouk7,
now6,
own6,
won6,
bon5,
bun5,
nob5,
nub5,
2 letter words:
ko6,
ow5,
wo5,
bo4,
ob4,
no2,
nu2,
on2,
ou2,
un2,