7 letter words:
finfoot13,
4 letter words:
tiff10,
toff10,
fino7,
foin7,
font7,
foot7,
info7,
into4,
onto4,
toon4,
3 letter words:
iff9,
off9,
fin6,
fit6,
fon6,
oft6,
ion3,
nit3,
noo3,
not3,
ono3,
oot3,
tin3,
ton3,
too3,
2 letter words:
if5,
of5,
in2,
it2,
no2,
oi2,
on2,
ti2,
to2,
