5 letter words:
hokum14,
khoum14,
kombu13,
4 letter words:
bouk10,
ombu8,
umbo8,
3 letter words:
bok9,
kob9,
boh8,
hob8,
hom8,
hub8,
hum8,
mho8,
ohm8,
bum7,
mob7,
ouk7,
mou5,
2 letter words:
hm7,
ko6,
ho5,
oh5,
uh5,
bo4,
mo4,
mu4,
ob4,
om4,
um4,
ou2,