4 letter words:
kook12,
boko10,
book10,
bouk10,
bulk10,
kobo10,
blow9,
bowl9,
kolo8,
look8,
oulk8,
wool7,
bolo6,
bool6,
lobo6,
obol6,
3 letter words:
kow10,
wok10,
bok9,
kob9,
bow8,
ouk7,
low6,
owl6,
woo6,
boo5,
lob5,
obo5,
loo3,
lou3,
2 letter words:
ko6,
ow5,
wo5,
bo4,
ob4,
lo2,
oo2,
ou2,