5 letter words:
apoop9,
napoo7,
4 letter words:
axon11,
oppo8,
poop8,
noop6,
poon6,
3 letter words:
pax12,
pox12,
nox10,
oxo10,
app7,
pap7,
pop7,
apo5,
nap5,
oop5,
pan5,
poa5,
poo5,
noo3,
ono3,
oon3,
2 letter words:
ax9,
ox9,
op4,
pa4,
po4,
an2,
na2,
no2,
on2,
oo2,