8 letter words:
effigies15,
5 letter words:
fiefs11,
fifes11,
siege6,
4 letter words:
effs10,
fief10,
fife10,
fifi10,
fegs8,
figs8,
fees7,
feis7,
seif7,
egis5,
gees5,
gies5,
3 letter words:
eff9,
iff9,
feg7,
fig7,
gif7,
efs6,
fee6,
fes6,
fie6,
ifs6,
sif6,
gee4,
gie4,
gis4,
seg4,
see3,
sei3,
2 letter words:
ef5,
fe5,
if5,
gi3,
ee2,
es2,
is2,
si2,