5 letter words:
bromo9,
broom9,
boron7,
moron7,
motor7,
robot7,
4 letter words:
boom8,
tomb8,
boon6,
boor6,
boot6,
born6,
bort6,
broo6,
mono6,
moon6,
moor6,
moot6,
morn6,
mort6,
norm6,
room6,
toom6,
onto4,
root4,
roto4,
toon4,
torn4,
toro4,
3 letter words:
mob7,
boo5,
bot5,
bro5,
mon5,
moo5,
mor5,
mot5,
nob5,
nom5,
orb5,
rob5,
rom5,
tom5,
noo3,
nor3,
not3,
ono3,
oot3,
ort3,
rot3,
ton3,
too3,
tor3,
2 letter words:
bo4,
mo4,
om4,
no2,
on2,
or2,
to2,