6 letter words:
begulf12,
bugler9,
bulger9,
burgle9,
fluter9,
butler8,
5 letter words:
fugle9,
bugle8,
bulge8,
flute8,
bluer7,
bluet7,
blurt7,
brute7,
buret7,
butle7,
rebut7,
rubel7,
ruble7,
tuber7,
gluer6,
glute6,
gruel6,
luger6,
4 letter words:
flub9,
frug8,
gulf8,
berg7,
burg7,
felt7,
flue7,
fret7,
fuel7,
furl7,
grub7,
left7,
reft7,
tref7,
turf7,
belt6,
blet6,
blue6,
blur6,
brut6,
burl6,
bute6,
lube6,
rube6,
tube6,
gelt5,
glue5,
glut5,
grue5,
luge5,
trug5,
urge5,
lure4,
lute4,
rule4,
true4,
tule4,
3 letter words:
fub8,
fug7,
beg6,
bug6,
eft6,
elf6,
fer6,
fet6,
feu6,
flu6,
fur6,
ref6,
bel5,
bet5,
bur5,
but5,
reb5,
rub5,
tub5,
urb5,
erg4,
gel4,
get4,
gul4,
gut4,
leg4,
lug4,
reg4,
rug4,
teg4,
tug4,
let3,
leu3,
ret3,
rue3,
rut3,
tel3,
ute3,
2 letter words:
ef5,
fe5,
be4,
el2,
er2,
et2,
re2,
ut2,