5 letter words:
kokum15,
kombu13,
4 letter words:
kook12,
womb11,
boko10,
book10,
bouk10,
kobo10,
moko10,
mook10,
boom8,
ombu8,
umbo8,
3 letter words:
kow10,
wok10,
bok9,
kob9,
bow8,
mow8,
bum7,
mob7,
ouk7,
woo6,
boo5,
moo5,
mou5,
obo5,
oom5,
2 letter words:
ko6,
ow5,
wo5,
bo4,
mo4,
mu4,
ob4,
om4,
um4,
oo2,
ou2,