5 letter words:
fouls8,
sulfo8,
4 letter words:
flux14,
flus7,
fons7,
foul7,
funs7,
nous4,
onus4,
soul4,
3 letter words:
fox13,
lox10,
lux10,
sox10,
flu6,
fon6,
fou6,
fun6,
nos3,
nus3,
ons3,
sol3,
son3,
sou3,
sun3,
uns3,
2 letter words:
ox9,
xu9,
of5,
lo2,
no2,
nu2,
on2,
os2,
so2,
un2,
us2,