8 letter words:
forklift18,
6 letter words:
filfot12,
firlot9,
5 letter words:
triff11,
flirt8,
lirot5,
triol5,
4 letter words:
kiff14,
koff14,
firk11,
folk11,
fork11,
riff10,
tiff10,
toff10,
kilo8,
kilt8,
lirk8,
filo7,
flir7,
flit7,
flor7,
foil7,
fort7,
frit7,
lift7,
loft7,
rift7,
rolf7,
loir4,
loti4,
riot4,
roil4,
roti4,
rotl4,
tirl4,
tiro4,
toil4,
tori4,
trio4,
3 letter words:
kif10,
iff9,
off9,
ilk7,
irk7,
kir7,
kit7,
koi7,
kor7,
oik7,
rok7,
fil6,
fir6,
fit6,
for6,
fro6,
oft6,
orf6,
rif6,
lit3,
lor3,
lot3,
oil3,
ort3,
rit3,
rot3,
til3,
tor3,
2 letter words:
ki6,
ko6,
if5,
of5,
io2,
it2,
li2,
lo2,
oi2,
or2,
ti2,
to2,