6 letter words:
filfot12,
firlot9,
loriot6,
5 letter words:
triff11,
flirt8,
floor8,
folio8,
lirot5,
torii5,
triol5,
4 letter words:
fifi10,
riff10,
tiff10,
toff10,
filo7,
flir7,
flit7,
flor7,
foil7,
fool7,
foot7,
fort7,
frit7,
lift7,
loft7,
loof7,
rift7,
rolf7,
roof7,
liri4,
loir4,
loor4,
loot4,
loti4,
loto4,
olio4,
riot4,
roil4,
root4,
roti4,
rotl4,
roto4,
tirl4,
tiro4,
toil4,
tool4,
tori4,
toro4,
trio4,
3 letter words:
iff9,
off9,
fil6,
fir6,
fit6,
for6,
fro6,
oft6,
oof6,
orf6,
rif6,
lit3,
loo3,
lor3,
lot3,
oil3,
oor3,
oot3,
ort3,
rit3,
roo3,
rot3,
til3,
too3,
tor3,
2 letter words:
if5,
of5,
io2,
it2,
li2,
lo2,
oi2,
oo2,
or2,
ti2,
to2,