9 letter words:
congruous12,
7 letter words:
congous10,
nocuous9,
6 letter words:
cogons9,
congos9,
congou9,
cornus8,
croons8,
rugous7,
5 letter words:
cogon8,
congo8,
conus7,
coons7,
corns7,
cornu7,
croon7,
curns7,
scorn7,
scour7,
uncos7,
uncus7,
goons6,
gurus6,
rungs6,
sorgo6,
4 letter words:
cogs7,
cons6,
coon6,
coos6,
corn6,
cors6,
crus6,
curn6,
curs6,
orcs6,
rocs6,
unco6,
gnus5,
goon5,
goos5,
guns5,
guru5,
nogs5,
rugs5,
rung5,
snog5,
snug5,
song5,
sung5,
nous4,
onos4,
onus4,
ours4,
runs4,
soon4,
sorn4,
sour4,
urns4,
urus4,
3 letter words:
cog6,
con5,
coo5,
cor5,
cos5,
cru5,
cur5,
orc5,
roc5,
gnu4,
goo4,
gor4,
gos4,
gun4,
nog4,
rug4,
noo3,
nor3,
nos3,
nus3,
ono3,
ons3,
ors3,
our3,
run3,
son3,
sou3,
sun3,
uns3,
urn3,
2 letter words:
go3,
no2,
nu2,
on2,
or2,
os2,
so2,
un2,
us2,