7 letter words:
outfire10,
6 letter words:
refute9,
5 letter words:
fetor8,
forte8,
fruit8,
ofter8,
refit8,
ourie5,
outer5,
outre5,
retie5,
route5,
uteri5,
4 letter words:
feet7,
fere7,
fete7,
fire7,
fore7,
fort7,
four7,
free7,
fret7,
frit7,
froe7,
reef7,
reft7,
reif7,
rife7,
rift7,
tofu7,
tref7,
turf7,
etui4,
euro4,
rete4,
riot4,
rite4,
rote4,
roti4,
roue4,
rout4,
tier4,
tire4,
tiro4,
tore4,
tori4,
tour4,
tree4,
trio4,
true4,
3 letter words:
eft6,
fee6,
fer6,
fet6,
feu6,
fie6,
fir6,
fit6,
foe6,
for6,
fou6,
fro6,
fur6,
oft6,
ref6,
rif6,
ere3,
ire3,
ore3,
ort3,
our3,
out3,
ree3,
rei3,
ret3,
roe3,
rot3,
rue3,
rut3,
tee3,
tie3,
toe3,
tor3,
tui3,
ute3,
2 letter words:
ef5,
fe5,
if5,
of5,
er2,
et2,
it2,
oe2,
oi2,
or2,
re2,
ti2,
to2,
ut2,