7 letter words:
vaccina14,
6 letter words:
vicuna11,
5 letter words:
auxin12,
vacua10,
vinca10,
avian8,
uncia7,
4 letter words:
caca8,
vain7,
vina7,
cain6,
unci6,
unai4,
3 letter words:
nix10,
vac8,
ava6,
van6,
vau6,
via6,
can5,
ain3,
ana3,
ani3,
2 letter words:
ax9,
xi9,
xu9,
aa2,
ai2,
an2,
in2,
na2,
nu2,
un2,