8 letter words:
superfix20,
7 letter words:
fixures17,
6 letter words:
prefix18,
fixers16,
fixure16,
furies9,
uprise8,
5 letter words:
fixer15,
fixes15,
refix15,
pixes14,
xerus12,
fires8,
fries8,
frise8,
reifs8,
serif8,
peris7,
piers7,
pries7,
prise7,
puris7,
purse7,
ripes7,
sirup7,
speir7,
spier7,
spire7,
sprue7,
super7,
sieur5,
4 letter words:
prex13,
pfui9,
feus7,
fire7,
firs7,
furs7,
fuse7,
refs7,
reif7,
rife7,
rifs7,
seif7,
serf7,
surf7,
peri6,
pier6,
pies6,
pure6,
puri6,
purs6,
reps6,
ripe6,
rips6,
sipe6,
spue6,
spur6,
supe6,
urps6,
ires4,
reis4,
rise4,
rues4,
ruse4,
sire4,
suer4,
sure4,
user4,
3 letter words:
fix13,
pix12,
rex10,
sex10,
six10,
xis10,
efs6,
fer6,
fes6,
feu6,
fie6,
fir6,
fur6,
ifs6,
ref6,
rif6,
per5,
pes5,
pie5,
pis5,
piu5,
psi5,
pur5,
pus5,
rep5,
rip5,
sip5,
sup5,
ups5,
urp5,
ers3,
ire3,
rei3,
res3,
rue3,
sei3,
ser3,
sir3,
sri3,
sue3,
use3,
2 letter words:
ex9,
xi9,
xu9,
ef5,
fe5,
if5,
pe4,
pi4,
up4,
er2,
es2,
is2,
re2,
si2,
us2,