6 letter words:
arbour8,
arroba8,
aurora6,
5 letter words:
arbor7,
burro7,
aurar5,
4 letter words:
boar6,
bora6,
bura6,
burr6,
aura4,
orra4,
roar4,
3 letter words:
aba5,
abo5,
arb5,
baa5,
bar5,
boa5,
bra5,
bro5,
brr5,
bur5,
oba5,
orb5,
rob5,
rub5,
urb5,
oar3,
ora3,
our3,
2 letter words:
ab4,
ba4,
bo4,
aa2,
ar2,
or2,