6 letter words:
snafus9,
5 letter words:
fauns8,
snafu8,
4 letter words:
aufs7,
fans7,
faun7,
funs7,
fuss7,
anus4,
sans4,
suns4,
3 letter words:
auf6,
fan6,
fas6,
fun6,
ass3,
nas3,
nus3,
san3,
sau3,
sun3,
sus3,
uns3,
2 letter words:
fa5,
an2,
as2,
na2,
nu2,
un2,
us2,