7 letter words:
finfoot13,
tinfoil10,
6 letter words:
filfot12,
tiffin12,
finito9,
lotion6,
5 letter words:
flint8,
folio8,
intil5,
nooit5,
4 letter words:
fifi10,
niff10,
tiff10,
toff10,
filo7,
fini7,
fino7,
flit7,
foil7,
foin7,
font7,
fool7,
foot7,
info7,
lift7,
loft7,
loof7,
inti4,
into4,
lino4,
lint4,
lion4,
loin4,
loon4,
loot4,
loti4,
loto4,
noil4,
nolo4,
oint4,
olio4,
onto4,
oont4,
toil4,
tool4,
toon4,
3 letter words:
iff9,
off9,
fil6,
fin6,
fit6,
fon6,
oft6,
oof6,
ion3,
lin3,
lit3,
loo3,
lot3,
nil3,
nit3,
noo3,
not3,
oil3,
ono3,
oon3,
oot3,
til3,
tin3,
ton3,
too3,
2 letter words:
if5,
of5,
in2,
io2,
it2,
li2,
lo2,
no2,
oi2,
on2,
oo2,
ti2,
to2,