5 letter words:
pinup9,
piano7,
4 letter words:
pupa8,
pupu8,
nipa6,
pain6,
pian6,
pina6,
pion6,
puna6,
upon6,
naoi4,
unai4,
unau4,
3 letter words:
app7,
pap7,
pip7,
pop7,
pup7,
apo5,
nap5,
nip5,
pan5,
pia5,
pin5,
piu5,
poi5,
pun5,
upo5,
ain3,
ani3,
ion3,
2 letter words:
op4,
pa4,
pi4,
up4,
ai2,
an2,
in2,
na2,
no2,
nu2,
oi2,
on2,
un2,