7 letter words:
unfurls10,
urnfuls10,
6 letter words:
sulfur9,
unfurl9,
urnful9,
5 letter words:
furls8,
nurls5,
4 letter words:
flus7,
funs7,
furl7,
furs7,
surf7,
lurs4,
nurl4,
nurs4,
runs4,
slur4,
sulu4,
ulus4,
urns4,
urus4,
3 letter words:
flu6,
fun6,
fur6,
lur3,
nur3,
nus3,
run3,
sun3,
sur3,
ulu3,
uns3,
urn3,
2 letter words:
nu2,
un2,
ur2,
us2,