6 letter words:
coupon10,
pionic10,
5 letter words:
ionic7,
4 letter words:
coop8,
coup8,
poco8,
cion6,
coin6,
coni6,
coon6,
icon6,
pion6,
poon6,
unci6,
unco6,
upon6,
3 letter words:
cop7,
cup7,
pic7,
con5,
coo5,
nip5,
pin5,
piu5,
poi5,
poo5,
pun5,
upo5,
ion3,
noo3,
ono3,
2 letter words:
op4,
pi4,
up4,
in2,
no2,
nu2,
oi2,
on2,
un2,