7 letter words:
borking14,
broking14,
6 letter words:
boring9,
orbing9,
robing9,
5 letter words:
boink11,
brink11,
bingo8,
boing8,
bring8,
robin7,
giron6,
groin6,
4 letter words:
birk10,
bonk10,
bork10,
knob10,
gink9,
grok9,
king9,
ikon8,
kino8,
kirn8,
oink8,
rink8,
biog7,
bong7,
brig7,
biro6,
born6,
brin6,
brio6,
girn5,
giro5,
grin5,
ring5,
inro4,
iron4,
noir4,
nori4,
3 letter words:
kob9,
ink7,
irk7,
kin7,
kir7,
koi7,
kor7,
big6,
bog6,
gib6,
gob6,
bin5,
bio5,
bro5,
nib5,
nob5,
obi5,
orb5,
rib5,
rob5,
gin4,
gor4,
nog4,
rig4,
ion3,
nor3,
rin3,
2 letter words:
ki6,
bi4,
bo4,
go3,
in2,
no2,
oi2,
on2,
or2,