7 letter words:
bourbon11,
6 letter words:
bonobo10,
unmoor8,
5 letter words:
bromo9,
broom9,
boron7,
bourn7,
moron7,
mourn7,
4 letter words:
bomb10,
boob8,
boom8,
bubo8,
burb8,
numb8,
umbo8,
boon6,
boor6,
born6,
broo6,
burn6,
mono6,
moon6,
moor6,
morn6,
muon6,
norm6,
room6,
3 letter words:
bob7,
bub7,
bum7,
mob7,
boo5,
bro5,
bun5,
bur5,
mon5,
moo5,
mor5,
mun5,
nob5,
nom5,
nub5,
orb5,
rob5,
rom5,
rub5,
rum5,
urb5,
noo3,
nor3,
ono3,
our3,
run3,
urn3,
2 letter words:
bo4,
mo4,
mu4,
om4,
um4,
no2,
nu2,
on2,
or2,
un2,