6 letter words:
axises13,
5 letter words:
faxes15,
fixes15,
saxes12,
sixes12,
safes8,
seifs8,
asses5,
sasse5,
sessa5,
sises5,
4 letter words:
faix14,
axes11,
axis11,
saxe11,
feis7,
fess7,
safe7,
seif7,
sais4,
sass4,
seas4,
seis4,
sess4,
sies4,
siss4,
3 letter words:
fax13,
fix13,
axe10,
sax10,
sex10,
six10,
xis10,
efs6,
fae6,
fas6,
fes6,
fie6,
ifs6,
sif6,
ais3,
ass3,
eas3,
ess3,
sae3,
sai3,
sea3,
sei3,
sis3,
2 letter words:
ax9,
ex9,
xi9,
ef5,
fa5,
fe5,
if5,
ae2,
ai2,
as2,
ea2,
es2,
is2,
si2,