5 letter words:
enfix15,
exine12,
4 letter words:
nixe11,
feen7,
feni7,
fine7,
neif7,
nief7,
nife7,
eine4,
3 letter words:
fix13,
nix10,
fee6,
fen6,
fie6,
fin6,
nef6,
een3,
ene3,
nee3,
nie3,
2 letter words:
ex9,
xi9,
ef5,
fe5,
if5,
ee2,
en2,
in2,
ne2,