8 letter words:
subrules10,
7 letter words:
furless10,
sulfurs10,
subrule9,
6 letter words:
fusels9,
fusser9,
rueful9,
sulfur9,
useful9,
burses8,
rubels8,
rubles8,
slurbs8,
subers8,
uruses6,
5 letter words:
flubs10,
flues8,
fuels8,
furls8,
fusel8,
fuses8,
selfs8,
serfs8,
surfs8,
bless7,
bluer7,
blues7,
blurs7,
burls7,
burse7,
buses7,
lubes7,
rebus7,
rubel7,
rubes7,
ruble7,
rubus7,
slubs7,
slurb7,
suber7,
lures5,
lusus5,
rules5,
ruses5,
slues5,
slurs5,
suers5,
sulus5,
users5,
4 letter words:
flub9,
fubs9,
fess7,
feus7,
flue7,
flus7,
fuel7,
furl7,
furs7,
fuse7,
fuss7,
refs7,
self7,
serf7,
surf7,
bels6,
blue6,
blur6,
burl6,
burs6,
buss6,
lube6,
rebs6,
rube6,
rubs6,
slub6,
subs6,
urbs6,
less4,
lues4,
lure4,
rues4,
rule4,
ruse4,
sels4,
sers4,
slue4,
slur4,
suer4,
sues4,
sulu4,
sure4,
ulus4,
urus4,
user4,
uses4,
3 letter words:
fub8,
efs6,
elf6,
fer6,
fes6,
feu6,
flu6,
fur6,
ref6,
bel5,
bes5,
bur5,
bus5,
reb5,
rub5,
sub5,
urb5,
els3,
ers3,
ess3,
les3,
leu3,
res3,
rue3,
sel3,
ser3,
sue3,
ulu3,
use3,
2 letter words:
ef5,
fe5,
be4,
el2,
er2,
es2,
re2,
us2,