5 letter words:
borak11,
brank11,
koban11,
krona9,
baron7,
borna7,
4 letter words:
bank10,
bark10,
boak10,
bonk10,
bork10,
brak10,
kbar10,
knob10,
krab10,
nabk10,
kaon8,
karn8,
karo8,
knar8,
koan8,
kora8,
nark8,
nork8,
okra8,
rank8,
barn6,
boar6,
bona6,
bora6,
born6,
bran6,
roan4,
3 letter words:
bok9,
kab9,
kob9,
ark7,
koa7,
kon7,
kor7,
oak7,
oka7,
rok7,
abo5,
arb5,
ban5,
bar5,
boa5,
bon5,
bor5,
bra5,
bro5,
nab5,
nob5,
oba5,
orb5,
rob5,
nor3,
oar3,
ora3,
ran3,
2 letter words:
ka6,
ko6,
ab4,
ba4,
bo4,
ob4,
an2,
ar2,
na2,
no2,
on2,
or2,