6 letter words:
ruckus12,
5 letter words:
ducks12,
rucks11,
kudus10,
kurus9,
cruds8,
curds8,
currs7,
durrs6,
rurus5,
4 letter words:
duck11,
cusk10,
ruck10,
suck10,
dusk9,
kudu9,
kuru8,
rusk8,
crud7,
cuds7,
curd7,
scud7,
crus6,
curr6,
curs6,
rucs6,
scur6,
durr5,
ruds5,
surd5,
urds5,
ruru4,
urus4,
3 letter words:
suk7,
cud6,
cru5,
cur5,
ruc5,
rud4,
sud4,
uds4,
urd4,
sur3,
2 letter words:
ur2,
us2,