6 letter words:
arbour8,
armour8,
5 letter words:
rumba9,
rumbo9,
umbra9,
amour7,
arbor7,
armor7,
barro7,
burro7,
maror7,
morra7,
murra7,
rumor7,
4 letter words:
ambo8,
barm8,
boma8,
borm8,
ombu8,
umbo8,
arum6,
baur6,
boar6,
bora6,
bura6,
burr6,
mora6,
mura6,
murr6,
ouma6,
roam6,
roma6,
roum6,
orra4,
roar4,
urao4,
3 letter words:
bam7,
bum7,
mob7,
abo5,
amu5,
arb5,
arm5,
bar5,
boa5,
bor5,
bra5,
bro5,
brr5,
bru5,
bur5,
mar5,
moa5,
mor5,
mou5,
oba5,
orb5,
ram5,
rob5,
rom5,
rub5,
rum5,
urb5,
oar3,
ora3,
our3,
2 letter words:
ab4,
am4,
ba4,
bo4,
ma4,
mo4,
mu4,
ob4,
om4,
um4,
ar2,
or2,
ou2,
ur2,