5 letter words:
koppa13,
punka11,
4 letter words:
knap10,
knop10,
punk10,
kaon8,
koan8,
kuna8,
nook8,
poop8,
pupa8,
poon6,
puna6,
upon6,
3 letter words:
kop9,
app7,
auk7,
koa7,
oak7,
oka7,
pap7,
pop7,
pup7,
apo5,
nap5,
pan5,
poo5,
pun5,
upo5,
noo3,
ono3,
2 letter words:
ka6,
op4,
pa4,
up4,
an2,
na2,
no2,
nu2,
on2,
un2,