4 letter words:
zobu15,
zori13,
bowr9,
brow9,
biro6,
brio6,
3 letter words:
wiz15,
biz14,
riz12,
bow8,
row6,
bio5,
boi5,
bor5,
bro5,
bru5,
bur5,
obi5,
orb5,
rib5,
rob5,
rub5,
urb5,
our3,
2 letter words:
zo11,
ow5,
wo5,
bi4,
bo4,
ob4,
io2,
oi2,
or2,
ou2,
ur2,