6 letter words:
unfurl9,
5 letter words:
flunk12,
knurl9,
korun9,
flour8,
fluor8,
4 letter words:
zonk17,
zouk17,
folk11,
fork11,
funk11,
knur8,
kuru8,
lunk8,
lurk8,
foul7,
four7,
furl7,
rolf7,
lorn4,
lour4,
nurl4,
3 letter words:
kor7,
flu6,
fon6,
for6,
fou6,
fro6,
fun6,
fur6,
nor3,
our3,
run3,
ulu3,
urn3,
2 letter words:
of5,
lo2,
no2,
nu2,
on2,
or2,
un2,