7 letter words:
liftoff16,
6 letter words:
filfot12,
4 letter words:
tiff10,
toff10,
filo7,
flit7,
foil7,
lift7,
loft7,
loti4,
toil4,
3 letter words:
iff9,
off9,
fil6,
fit6,
oft6,
lit3,
lot3,
oil3,
til3,
2 letter words:
if5,
of5,
io2,
it2,
li2,
lo2,
oi2,
ti2,
to2,