4 letter words:
pawn9,
wain7,
nipa6,
pain6,
pian6,
pina6,
puna6,
unai4,
3 letter words:
paw8,
wap8,
awn6,
naw6,
wai6,
wan6,
win6,
nap5,
nip5,
pan5,
pia5,
pin5,
piu5,
pun5,
ain3,
ani3,
uni3,
2 letter words:
aw5,
pa4,
pi4,
up4,
ai2,
an2,
in2,
na2,
nu2,
un2,