6 letter words:
ionone6,
5 letter words:
exine12,
xenon12,
ninon5,
onion5,
4 letter words:
exon11,
nixe11,
oxen11,
eine4,
nene4,
neon4,
nine4,
none4,
noni4,
noon4,
onie4,
3 letter words:
exo10,
nix10,
nox10,
oxo10,
een3,
ene3,
eon3,
inn3,
ion3,
nee3,
nie3,
non3,
noo3,
one3,
ono3,
oon3,
2 letter words:
ex9,
ox9,
xi9,
ee2,
en2,
in2,
io2,
ne2,
no2,
oe2,
oi2,
on2,
oo2,