5 letter words:
exine12,
penie7,
4 letter words:
nixe11,
neep6,
peen6,
pein6,
pene6,
peni6,
pine6,
eine4,
3 letter words:
pix12,
nix10,
nep5,
nip5,
pee5,
pen5,
pie5,
pin5,
piu5,
pun5,
een3,
ene3,
nee3,
nie3,
uni3,
2 letter words:
ex9,
xi9,
xu9,
pe4,
pi4,
up4,
ee2,
en2,
in2,
ne2,
nu2,
un2,