13 letter words:
individuation18,
10 letter words:
divination14,
8 letter words:
addition10,
audition9,
nidation9,
6 letter words:
avidin10,
outadd8,
outdid8,
adnoun7,
anoint6,
nation6,
5 letter words:
avoid9,
davit9,
divan9,
divot9,
viand9,
vodun9,
avion8,
vaunt8,
iodid7,
undid7,
audio6,
audit6,
danio6,
daunt6,
donna6,
donut6,
idiot6,
iodin6,
nitid6,
oidia6,
tondi6,
anion5,
inion5,
niton5,
tauon5,
union5,
4 letter words:
avid8,
diva8,
void8,
nova7,
vain7,
vatu7,
vina7,
vino7,
vita7,
dado6,
dido6,
duad6,
adit5,
dato5,
daut5,
dino5,
dint5,
dita5,
doat5,
doit5,
dona5,
duit5,
dunt5,
nidi5,
nodi5,
toad5,
udon5,
undo5,
anon4,
anti4,
aunt4,
auto4,
inia4,
inti4,
into4,
iota4,
naoi4,
nona4,
nota4,
noun4,
tain4,
tuna4,
unai4,
unit4,
unto4,
3 letter words:
vid7,
avo6,
ova6,
tav6,
van6,
vat6,
vau6,
via6,
add5,
dad5,
did5,
dud5,
odd5,
ado4,
aid4,
and4,
dan4,
din4,
dit4,
don4,
dot4,
dui4,
dun4,
duo4,
nod4,
oda4,
oud4,
tad4,
tod4,
udo4,
ain3,
ait3,
ani3,
ant3,
inn3,
ion3,
nan3,
nit3,
not3,
nun3,
nut3,
oat3,
out3,
tan3,
tao3,
tau3,
tin3,
ton3,
tui3,
tun3,
uta3,
2 letter words:
ad3,
do3,
id3,
od3,
ai2,
an2,
at2,
in2,
it2,
na2,
no2,
nu2,
oi2,
on2,
ta2,
ti2,
to2,
un2,
ut2,