5 letter words:
urbia7,
4 letter words:
abri6,
biro6,
boar6,
bora6,
brio6,
bura6,
obia6,
3 letter words:
abo5,
arb5,
bar5,
bio5,
boa5,
bra5,
bro5,
bur5,
oba5,
obi5,
orb5,
rib5,
rob5,
rub5,
urb5,
air3,
oar3,
ora3,
our3,
rai3,
ria3,
2 letter words:
ab4,
ba4,
bi4,
bo4,
ai2,
ar2,
oi2,
or2,