7 letter words:
sferics12,
6 letter words:
frises9,
serifs9,
crises8,
scries8,
5 letter words:
fices10,
fiscs10,
fires8,
fries8,
frise8,
reifs8,
seifs8,
serfs8,
serif8,
cires7,
cress7,
cries7,
rices7,
sices7,
rises5,
sires5,
4 letter words:
fice9,
fisc9,
fess7,
fire7,
firs7,
refs7,
reif7,
rife7,
rifs7,
seif7,
serf7,
cess6,
cire6,
cris6,
ices6,
recs6,
rice6,
secs6,
sice6,
sics6,
ires4,
reis4,
rise4,
seis4,
sers4,
sire4,
sirs4,
sris4,
3 letter words:
efs6,
fer6,
fes6,
fie6,
fir6,
ifs6,
ref6,
rif6,
cis5,
ice5,
rec5,
sec5,
sic5,
ers3,
ess3,
ire3,
rei3,
res3,
sei3,
ser3,
sir3,
sis3,
sri3,
2 letter words:
ef5,
fe5,
if5,
er2,
es2,
is2,
re2,
si2,
