5 letter words:
floor8,
flour8,
flout8,
fluor8,
flurr8,
furol8,
furor8,
outro5,
rotor5,
4 letter words:
flor7,
fool7,
foot7,
fort7,
foul7,
four7,
furl7,
furr7,
loft7,
loof7,
rolf7,
roof7,
tofu7,
turf7,
loor4,
loot4,
loto4,
lour4,
lout4,
root4,
rort4,
rotl4,
roto4,
roul4,
rout4,
tolu4,
tool4,
toro4,
torr4,
tour4,
3 letter words:
flu6,
for6,
fou6,
fro6,
fur6,
oft6,
oof6,
orf6,
ufo6,
loo3,
lor3,
lot3,
lou3,
lur3,
oor3,
oot3,
ort3,
our3,
out3,
roo3,
rot3,
rut3,
too3,
tor3,
2 letter words:
of5,
lo2,
oo2,
or2,
ou2,
to2,
ur2,
ut2,