6 letter words:
bunker12,
5 letter words:
burke11,
4 letter words:
berk10,
buke10,
bunk10,
burk10,
kerb10,
knub10,
kern8,
knur8,
kune8,
nerk8,
neuk8,
nuke8,
renk8,
bren6,
burn6,
rube6,
unbe6,
rune4,
3 letter words:
keb9,
erk7,
euk7,
ken7,
kue7,
nek7,
uke7,
ben5,
bru5,
bun5,
bur5,
neb5,
nub5,
reb5,
rub5,
urb5,
ern3,
nur3,
ren3,
rue3,
run3,
ure3,
urn3,
2 letter words:
be4,
en2,
er2,
ne2,
nu2,
re2,
un2,
ur2,