9 letter words:
diffusion16,
6 letter words:
fondus10,
founds10,
fusion9,
iodins7,
5 letter words:
diffs12,
doffs12,
duffs12,
sniff11,
snuff11,
fidos9,
finds9,
fonds9,
fondu9,
found9,
fundi9,
funds9,
finis8,
finos8,
foins8,
infos8,
dinos6,
iodin6,
nidus6,
nodus6,
sound6,
udons6,
4 letter words:
diff11,
doff11,
duff11,
offs10,
difs8,
fido8,
fids8,
find8,
fond8,
fuds8,
fund8,
fino7,
fins7,
foin7,
fons7,
funs7,
info7,
dino5,
dins5,
dons5,
duns5,
duos5,
nidi5,
nodi5,
nods5,
ouds5,
udon5,
udos5,
undo5,
ions4,
nisi4,
nous4,
onus4,
3 letter words:
iff9,
off9,
dif7,
fid7,
fud7,
fin6,
fon6,
fou6,
fun6,
ifs6,
din4,
dis4,
don4,
dos4,
dui4,
dun4,
duo4,
ids4,
nod4,
ods4,
oud4,
sod4,
udo4,
ins3,
ion3,
nos3,
nus3,
ons3,
sin3,
son3,
sou3,
sun3,
uns3,
2 letter words:
if5,
of5,
do3,
id3,
od3,
in2,
is2,
no2,
nu2,
oi2,
on2,
os2,
si2,
so2,
un2,
us2,