7 letter words:
eucaine9,
6 letter words:
axenic15,
unciae8,
5 letter words:
xenic14,
auxin12,
exine12,
xenia12,
niece7,
uncia7,
4 letter words:
exec13,
eaux11,
nixe11,
acne6,
cain6,
cane6,
cine6,
nice6,
unci6,
unai4,
3 letter words:
axe10,
nix10,
ace5,
can5,
cee5,
cue5,
ecu5,
ice5,
ain3,
ane3,
ani3,
eau3,
nae3,
nee3,
2 letter words:
ax9,
ex9,
xi9,
xu9,
ae2,
ai2,
an2,
en2,
in2,
na2,
ne2,
nu2,
un2,