6 letter words:
birkie12,
5 letter words:
biker11,
bikie11,
kibei11,
greek10,
beige8,
giber8,
grebe8,
4 letter words:
berk10,
bike10,
birk10,
kerb10,
kibe10,
geek9,
keir8,
kier8,
reek8,
berg7,
brig7,
gibe7,
beer6,
bier6,
bree6,
brie6,
eger5,
gree5,
3 letter words:
keg8,
eek7,
eke7,
irk7,
kir7,
beg6,
big6,
gib6,
bee5,
reb5,
rib5,
erg4,
gee4,
gie4,
reg4,
rig4,
ere3,
ire3,
ree3,
rei3,
2 letter words:
ki6,
be4,
bi4,
er2,
re2,