5 letter words:
pinko11,
ippon9,
4 letter words:
kipp12,
knop10,
pink10,
ponk10,
pook10,
ikon8,
kino8,
nook8,
oink8,
oppo8,
poop8,
noop6,
pion6,
poon6,
3 letter words:
kip9,
kop9,
ink7,
kin7,
koi7,
kon7,
oik7,
pip7,
pop7,
nip5,
oop5,
pin5,
poi5,
poo5,
ion3,
noo3,
ono3,
oon3,
2 letter words:
ki6,
ko6,
op4,
pi4,
po4,
in2,
io2,
no2,
oi2,
on2,
oo2,