5 letter words:
krubi11,
4 letter words:
zouk17,
zobu15,
zori13,
work11,
birk10,
bork10,
bouk10,
brik10,
buik10,
burk10,
bowr9,
brow9,
koru8,
kuri8,
biro6,
brio6,
3 letter words:
wiz15,
biz14,
riz12,
kow10,
wok10,
bok9,
kob9,
bow8,
irk7,
kir7,
koi7,
kor7,
oik7,
ouk7,
rok7,
row6,
bio5,
boi5,
bor5,
bro5,
bru5,
bur5,
obi5,
orb5,
rib5,
rob5,
rub5,
urb5,
our3,
2 letter words:
zo11,
ki6,
ko6,
ow5,
wo5,
bi4,
bo4,
ob4,
io2,
oi2,
or2,
ou2,
ur2,