9 letter words:
humbucker22,
6 letter words:
bucker14,
mucker14,
cherub13,
cumber12,
5 letter words:
bucku13,
buchu12,
merch12,
rhumb12,
burke11,
crumb11,
rheum10,
ruche10,
brume9,
cuber9,
umber9,
umbre9,
4 letter words:
heck13,
huck13,
beck12,
buck12,
kemb12,
meck12,
muck12,
chub11,
chum11,
kueh11,
much11,
rukh11,
berk10,
buke10,
burk10,
cuke10,
kerb10,
merk10,
murk10,
reck10,
ruck10,
buhr9,
cher9,
herb9,
herm9,
berm8,
crem8,
cube8,
curb8,
kuru8,
merc8,
huer7,
crue6,
cure6,
ecru6,
mure6,
rube6,
rume6,
3 letter words:
keb9,
che8,
ech8,
hem8,
hub8,
hum8,
bum7,
cub7,
cum7,
erk7,
euk7,
kue7,
uke7,
her6,
hue6,
reh6,
bru5,
bur5,
cru5,
cue5,
cur5,
ecu5,
emu5,
meu5,
reb5,
rec5,
rem5,
rub5,
ruc5,
rum5,
umu5,
urb5,
rue3,
ure3,
2 letter words:
ch7,
hm7,
eh5,
he5,
uh5,
be4,
em4,
me4,
mu4,
um4,
er2,
re2,
ur2,