7 letter words:
cirrous9,
6 letter words:
cirrus8,
cruors8,
curios8,
cursor8,
5 letter words:
coirs7,
cruor7,
curio7,
currs7,
scour7,
orris5,
4 letter words:
coir6,
cors6,
cris6,
crus6,
curr6,
curs6,
orcs6,
rocs6,
uric6,
ours4,
sori4,
sour4,
3 letter words:
cis5,
cor5,
cos5,
cru5,
cur5,
orc5,
roc5,
sic5,
ors3,
our3,
sir3,
sou3,
sri3,
2 letter words:
is2,
oi2,
or2,
os2,
si2,
so2,
us2,