6 letter words:
beezer17,
breeze17,
rebuke12,
5 letter words:
burke11,
beret7,
brute7,
buret7,
rebut7,
tuber7,
4 letter words:
zerk17,
zebu15,
berk10,
kerb10,
keet8,
reek8,
trek8,
turk8,
beer6,
beet6,
bree6,
brut6,
bute6,
rube6,
tube6,
rete4,
tree4,
true4,
3 letter words:
zek16,
zee12,
eek7,
eke7,
kue7,
uke7,
bee5,
bet5,
bur5,
but5,
reb5,
rub5,
tub5,
urb5,
ere3,
ree3,
ret3,
rue3,
rut3,
tee3,
ute3,
2 letter words:
be4,
er2,
et2,
re2,
ut2,