7 letter words:
fretful13,
truffle13,
flutter10,
6 letter words:
ruffle12,
truffe12,
tuffet12,
ferule9,
fetter9,
fettle9,
fluter9,
fueler9,
lefter9,
refelt9,
reflet9,
refuel9,
refute9,
telfer9,
tufter9,
letter6,
turtle6,
5 letter words:
ruffe11,
fleer8,
fleet8,
flute8,
refel8,
elute5,
relet5,
tutee5,
utter5,
4 letter words:
luff10,
ruff10,
teff10,
tuff10,
feel7,
feet7,
felt7,
fere7,
fete7,
flee7,
flue7,
free7,
fret7,
fuel7,
furl7,
left7,
reef7,
reft7,
tref7,
tuft7,
turf7,
leer4,
leet4,
lure4,
lute4,
reel4,
rete4,
rule4,
teel4,
tele4,
tree4,
tret4,
true4,
tule4,
3 letter words:
eff9,
eft6,
elf6,
fee6,
fer6,
fet6,
feu6,
flu6,
fur6,
ref6,
eel3,
ere3,
lee3,
let3,
leu3,
ree3,
ret3,
rue3,
rut3,
tee3,
tel3,
tet3,
tut3,
ute3,
2 letter words:
ef5,
fe5,
el2,
er2,
et2,
re2,
ut2,