7 letter words:
excises16,
6 letter words:
excess15,
excise15,
fesses9,
cesses8,
ecesis8,
seises6,
5 letter words:
fixes15,
execs14,
sexes12,
sixes12,
feces10,
fices10,
fiscs10,
fesse8,
seifs8,
sices7,
esses5,
seise5,
sises5,
4 letter words:
exec13,
exes11,
fice9,
fisc9,
fees7,
fess7,
seif7,
cees6,
cess6,
ices6,
secs6,
sice6,
sics6,
eses4,
sees4,
seis4,
3 letter words:
fix13,
sex10,
six10,
xis10,
efs6,
fee6,
fes6,
fie6,
ifs6,
cee5,
cis5,
ice5,
sec5,
sic5,
ess3,
see3,
sei3,
sis3,
2 letter words:
ex9,
xi9,
ef5,
fe5,
if5,
es2,
is2,
si2,