5 letter words:
burke11,
bluer7,
rubel7,
ruble7,
4 letter words:
berk10,
bulk10,
kerb10,
leku8,
lurk8,
blue6,
blur6,
burl6,
lube6,
rube6,
lure4,
rule4,
3 letter words:
elk7,
kue7,
lek7,
uke7,
bel5,
bur5,
reb5,
rub5,
urb5,
leu3,
rue3,
2 letter words:
be4,
el2,
er2,
re2,