7 letter words:
opinion9,
6 letter words:
pinion8,
5 letter words:
pinon7,
inion5,
onion5,
4 letter words:
noop6,
pion6,
poon6,
noni4,
noon4,
3 letter words:
nip5,
oop5,
pin5,
poi5,
poo5,
inn3,
ion3,
non3,
noo3,
ono3,
oon3,
2 letter words:
op4,
pi4,
po4,
in2,
io2,
no2,
oi2,
on2,
oo2,
