6 letter words:
borrow11,
burrow11,
5 letter words:
buroo7,
burro7,
4 letter words:
bowr9,
brow9,
biro6,
birr6,
boor6,
brio6,
broo6,
burr6,
3 letter words:
bow8,
row6,
woo6,
bio5,
boi5,
boo5,
bor5,
bro5,
brr5,
bru5,
bur5,
obi5,
obo5,
orb5,
rib5,
rob5,
rub5,
urb5,
oor3,
our3,
roo3,
2 letter words:
ow5,
wo5,
bi4,
bo4,
ob4,
io2,
oi2,
oo2,
or2,
ou2,
ur2,