6 letter words:
booboo10,
boocoo10,
5 letter words:
combo11,
coomb11,
gombo10,
bromo9,
broom9,
groom8,
4 letter words:
bomb10,
cobb10,
comb10,
boob8,
boom8,
corm8,
gobo7,
gorm7,
boor6,
broo6,
moor6,
room6,
3 letter words:
bob7,
cob7,
mob7,
moc7,
bog6,
cog6,
gob6,
mog6,
boo5,
bro5,
coo5,
cor5,
moo5,
mor5,
orb5,
orc5,
rob5,
roc5,
rom5,
goo4,
gor4,
2 letter words:
bo4,
mo4,
om4,
go3,
or2,