7 letter words:
sulfurs10,
6 letter words:
sulfur9,
5 letter words:
furls8,
surfs8,
lusus5,
slurs5,
sulus5,
4 letter words:
flus7,
furl7,
furs7,
fuss7,
surf7,
lurs4,
slur4,
sulu4,
susu4,
ulus4,
urus4,
3 letter words:
flu6,
fur6,
lur3,
sur3,
sus3,
ulu3,
2 letter words:
ur2,
us2,