7 letter words:
surfers10,
usurers7,
6 letter words:
fusser9,
surfer9,
uruses6,
usurer6,
5 letter words:
kerfs12,
kurus9,
rusks9,
fuses8,
serfs8,
surfs8,
ruers5,
ruses5,
suers5,
surer5,
users5,
4 letter words:
kefs11,
kerf11,
kues8,
kuru8,
rusk8,
suks8,
ukes8,
fess7,
feus7,
furs7,
fuse7,
fuss7,
refs7,
serf7,
surf7,
errs4,
ruer4,
rues4,
ruse4,
sers4,
suer4,
sues4,
sure4,
urus4,
user4,
uses4,
3 letter words:
kef10,
kue7,
suk7,
uke7,
efs6,
fer6,
fes6,
feu6,
fur6,
ref6,
err3,
ers3,
ess3,
res3,
rue3,
ser3,
sue3,
use3,
2 letter words:
ef5,
fe5,
er2,
es2,
re2,
us2,