5 letter words:
bravo10,
4 letter words:
arvo7,
urva7,
voar7,
vrou7,
baur6,
boar6,
bora6,
bura6,
urao4,
3 letter words:
avo6,
ova6,
uva6,
var6,
vau6,
vor6,
abo5,
arb5,
bar5,
boa5,
bor5,
bra5,
bro5,
bru5,
bur5,
oba5,
orb5,
rob5,
rub5,
urb5,
oar3,
ora3,
our3,
2 letter words:
ab4,
ba4,
bo4,
ob4,
ar2,
or2,
ou2,
ur2,