5 letter words:
funks12,
ankus9,
fauns8,
snafu8,
unaus5,
4 letter words:
funk11,
kafs11,
auks8,
kuna8,
sank8,
skua8,
sunk8,
fans7,
faun7,
funs7,
anus4,
unau4,
3 letter words:
kaf10,
ask7,
auk7,
kas7,
ska7,
suk7,
fan6,
fas6,
fun6,
nus3,
sau3,
sun3,
uns3,
2 letter words:
ka6,
fa5,
an2,
as2,
na2,
nu2,
un2,
us2,