5 letter words:
fritt8,
torot5,
4 letter words:
riff10,
tiff10,
toff10,
foot7,
fort7,
frit7,
rift7,
roof7,
toft7,
otto4,
riot4,
root4,
roti4,
roto4,
tiro4,
toit4,
toot4,
tori4,
toro4,
tort4,
trio4,
trot4,
3 letter words:
iff9,
off9,
fir6,
fit6,
for6,
fro6,
oft6,
rif6,
oot3,
ort3,
rot3,
tit3,
too3,
tor3,
tot3,
2 letter words:
if5,
of5,
it2,
oi2,
or2,
ti2,
to2,