7 letter words:
fustier10,
surfeit10,
6 letter words:
freits9,
frites9,
fruits9,
furies9,
refits9,
resift9,
rifest9,
sifter9,
strife9,
surfie9,
suiter6,
urites6,
5 letter words:
feist8,
fetus8,
fiers8,
fiest8,
fires8,
first8,
freit8,
frets8,
fries8,
frise8,
frist8,
frits8,
fruit8,
frust8,
refit8,
reifs8,
rifte8,
rifts8,
serif8,
terfs8,
treif8,
turfs8,
etuis5,
reist5,
resit5,
rites5,
sieur5,
stire5,
sture5,
suite5,
tiers5,
tires5,
tries5,
trues5,
urite5,
uteri5,
4 letter words:
efts7,
feis7,
fest7,
fets7,
feus7,
fier7,
fire7,
firs7,
fist7,
fits7,
fret7,
fris7,
frit7,
furs7,
fuse7,
fust7,
refs7,
reft7,
reif7,
rife7,
rifs7,
rift7,
seif7,
serf7,
sift7,
surf7,
tefs7,
terf7,
tref7,
turf7,
erst4,
etui4,
ires4,
iure4,
reis4,
rest4,
rets4,
rise4,
rite4,
rits4,
rues4,
ruse4,
rust4,
ruts4,
seir4,
sire4,
site4,
stie4,
stir4,
suer4,
suet4,
suit4,
sure4,
tier4,
ties4,
tire4,
tres4,
trie4,
true4,
tuis4,
ures4,
user4,
utes4,
utis4,
3 letter words:
efs6,
eft6,
erf6,
fer6,
fes6,
fet6,
feu6,
fie6,
fir6,
fit6,
fur6,
ifs6,
ref6,
rif6,
sif6,
tef6,
ers3,
est3,
ire3,
its3,
rei3,
res3,
ret3,
rit3,
rue3,
rut3,
sei3,
ser3,
set3,
sir3,
sit3,
sri3,
sue3,
sui3,
sur3,
tes3,
tie3,
tis3,
tui3,
ure3,
use3,
ute3,
uts3,
2 letter words:
ef5,
fe5,
if5,
er2,
es2,
et2,
is2,
it2,
re2,
si2,
st2,
te2,
ti2,
ur2,
us2,
ut2,