5 letter words:
fanos8,
fauns8,
snafu8,
4 letter words:
fano7,
fans7,
faun7,
fons7,
funs7,
oafs7,
sofa7,
anus4,
naos4,
nous4,
onus4,
3 letter words:
fan6,
fas6,
fon6,
fou6,
fun6,
oaf6,
nos3,
nus3,
ons3,
sau3,
son3,
sou3,
sun3,
uns3,
2 letter words:
fa5,
of5,
an2,
as2,
na2,
no2,
nu2,
on2,
os2,
so2,
un2,
us2,