6 letter words:
courbs10,
5 letter words:
courb9,
curbs9,
scrub9,
cours7,
scour7,
4 letter words:
cobs8,
cubs8,
curb8,
bors6,
bros6,
brus6,
burs6,
cors6,
cour6,
crus6,
curs6,
orbs6,
orcs6,
robs6,
rocs6,
rubs6,
rucs6,
scur6,
sorb6,
urbs6,
ours4,
sour4,
3 letter words:
cob7,
cub7,
bor5,
bos5,
bro5,
bru5,
bur5,
bus5,
cor5,
cos5,
cru5,
cur5,
obs5,
orb5,
orc5,
rob5,
roc5,
rub5,
ruc5,
sob5,
soc5,
sub5,
urb5,
ors3,
our3,
ous3,
sou3,
sur3,
2 letter words:
bo4,
ob4,
or2,
os2,
ou2,
so2,
ur2,
us2,