5 letter words:
berko11,
broke11,
burke11,
4 letter words:
berk10,
boke10,
bork10,
bouk10,
buke10,
burk10,
kerb10,
kero8,
kore8,
koru8,
roke8,
bore6,
robe6,
rube6,
euro4,
roue4,
3 letter words:
bok9,
keb9,
kob9,
erk7,
euk7,
kor7,
kue7,
oke7,
ouk7,
rok7,
uke7,
bor5,
bro5,
bru5,
bur5,
obe5,
orb5,
reb5,
rob5,
rub5,
urb5,
ore3,
our3,
reo3,
roe3,
rue3,
ure3,
2 letter words:
ko6,
be4,
bo4,
ob4,
er2,
oe2,
or2,
ou2,
re2,
ur2,