7 letter words:
croupon11,
6 letter words:
coupon10,
5 letter words:
croup9,
corno7,
cornu7,
croon7,
porno7,
4 letter words:
coop8,
coup8,
crop8,
poco8,
coon6,
corn6,
cour6,
curn6,
noop6,
noup6,
poon6,
poor6,
porn6,
pour6,
proo6,
roop6,
roup6,
unco6,
upon6,
ourn4,
roon4,
3 letter words:
cop7,
cup7,
con5,
coo5,
cor5,
cru5,
cur5,
oop5,
orc5,
oup5,
poo5,
pro5,
pun5,
pur5,
roc5,
ruc5,
upo5,
urp5,
noo3,
nor3,
nur3,
ono3,
oon3,
oor3,
our3,
roo3,
run3,
urn3,
2 letter words:
op4,
po4,
up4,
no2,
nu2,
on2,
oo2,
or2,
ou2,
un2,
ur2,