5 letter words:
bumbo11,
blurb9,
rumbo9,
4 letter words:
bomb10,
blob8,
blub8,
borm8,
bubo8,
bulb8,
burb8,
ombu8,
umbo8,
blur6,
burl6,
murl6,
roum6,
lour4,
roul4,
3 letter words:
bob7,
bub7,
bum7,
mob7,
bor5,
bro5,
bru5,
bur5,
lob5,
lum5,
mol5,
mor5,
mou5,
olm5,
orb5,
rob5,
rom5,
rub5,
rum5,
urb5,
lor3,
lou3,
lur3,
our3,
2 letter words:
bo4,
mo4,
mu4,
ob4,
om4,
um4,
lo2,
or2,
ou2,
ur2,