5 letter words:
fanos8,
fossa8,
sofas8,
4 letter words:
fano7,
fans7,
fons7,
foss7,
oafs7,
sofa7,
naos4,
ossa4,
sans4,
sons4,
3 letter words:
fan6,
fas6,
fon6,
oaf6,
ass3,
nas3,
nos3,
ons3,
san3,
son3,
sos3,
2 letter words:
fa5,
of5,
an2,
as2,
na2,
no2,
on2,
os2,
so2,