6 letter words:
coupon10,
5 letter words:
croup9,
cornu7,
croon7,
porno7,
4 letter words:
coop8,
coup8,
crop8,
poco8,
coon6,
corn6,
curn6,
poon6,
poor6,
porn6,
pour6,
roup6,
unco6,
upon6,
3 letter words:
cop7,
cup7,
con5,
coo5,
cor5,
cru5,
cur5,
orc5,
poo5,
pro5,
pun5,
pur5,
roc5,
upo5,
urp5,
noo3,
nor3,
ono3,
our3,
run3,
urn3,
2 letter words:
op4,
up4,
no2,
nu2,
on2,
or2,
un2,