7 letter words:
uncurls9,
6 letter words:
uncurl8,
5 letter words:
curls7,
curns7,
uncus7,
nurls5,
4 letter words:
crus6,
curl6,
curn6,
curs6,
nurl4,
runs4,
slur4,
sulu4,
ulus4,
urns4,
urus4,
3 letter words:
cru5,
cur5,
nus3,
run3,
sun3,
ulu3,
uns3,
urn3,
2 letter words:
nu2,
un2,
us2,