5 letter words:
caffs13,
cafes10,
faces10,
4 letter words:
caff12,
effs10,
cafe9,
face9,
safe7,
aces6,
casa6,
case6,
asea4,
3 letter words:
aff9,
eff9,
efs6,
fas6,
fes6,
ace5,
sac5,
sec5,
aas3,
sae3,
sea3,
2 letter words:
ef5,
fa5,
fe5,
aa2,
ae2,
as2,
es2,