5 letter words:
nippy12,
piney10,
4 letter words:
pipy11,
piny9,
pyin9,
pyne9,
yipe9,
pipe8,
pein6,
peni6,
pine6,
3 letter words:
pye8,
yep8,
yip8,
pep7,
pip7,
nye6,
yen6,
yin6,
nep5,
nip5,
pen5,
pie5,
pin5,
nie3,
2 letter words:
ny5,
ye5,
pe4,
pi4,
en2,
in2,
ne2,