10 letter words:
foundation14,
8 letter words:
fountain11,
donation9,
7 letter words:
fondant11,
outfind11,
fontina10,
6 letter words:
fantod10,
unfond10,
fanion9,
infant9,
nonfat9,
adnoun7,
anoint6,
nation6,
notion6,
5 letter words:
fondu9,
found9,
fundi9,
afoot8,
faint8,
fanon8,
fount8,
futon8,
unfit8,
audio6,
audit6,
danio6,
daunt6,
donna6,
donut6,
ootid6,
outdo6,
tondi6,
tondo6,
anion5,
niton5,
onion5,
tauon5,
union5,
4 letter words:
daft8,
fado8,
fido8,
find8,
fond8,
food8,
fund8,
fain7,
fano7,
faun7,
fiat7,
fino7,
foin7,
font7,
foot7,
info7,
naif7,
tofu7,
tufa7,
adit5,
dato5,
daut5,
dino5,
dint5,
dita5,
doat5,
doit5,
dona5,
duit5,
dunt5,
nodi5,
toad5,
udon5,
undo5,
anon4,
anti4,
aunt4,
auto4,
into4,
iota4,
naoi4,
nona4,
noon4,
nota4,
noun4,
onto4,
tain4,
toon4,
tuna4,
unai4,
unit4,
unto4,
3 letter words:
dif7,
fad7,
fid7,
fud7,
aft6,
fan6,
fat6,
fin6,
fit6,
fon6,
fou6,
fun6,
oaf6,
oft6,
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,
noo3,
not3,
nun3,
nut3,
oat3,
ono3,
oot3,
out3,
tan3,
tao3,
tau3,
tin3,
ton3,
too3,
tui3,
tun3,
uta3,
2 letter words:
fa5,
if5,
of5,
ad3,
do3,
id3,
od3,
ai2,
an2,
at2,
in2,
it2,
na2,
no2,
nu2,
oi2,
on2,
ta2,
ti2,
to2,
un2,
ut2,