5 letter words:
bucko13,
kombu13,
combo11,
coomb11,
4 letter words:
bock12,
buck12,
mick12,
mock12,
muck12,
book10,
comb10,
cook10,
kobo10,
boom8,
umbo8,
3 letter words:
ick9,
kob9,
bum7,
cob7,
cub7,
cum7,
koi7,
mib7,
mic7,
mob7,
moc7,
bio5,
boo5,
coo5,
moo5,
obi5,
2 letter words:
ki6,
bi4,
bo4,
mi4,
mo4,
mu4,
om4,
um4,
oi2,