7 letter words:
fretted11,
6 letter words:
defter10,
fetted10,
fetter9,
retted7,
5 letter words:
defer9,
feted9,
freed9,
refed9,
freet8,
terfe8,
deter6,
treed6,
4 letter words:
deft8,
feed8,
feer7,
feet7,
fere7,
fete7,
fett7,
free7,
fret7,
reef7,
reft7,
terf7,
tref7,
deer5,
deet5,
dere5,
dree5,
ered5,
rede5,
reed5,
teed5,
rete4,
teer4,
tete4,
tree4,
tret4,
3 letter words:
def7,
fed7,
eft6,
erf6,
fee6,
fer6,
fet6,
ref6,
tef6,
dee4,
red4,
ted4,
ere3,
ree3,
ret3,
tee3,
tet3,
2 letter words:
ef5,
fe5,
de3,
ed3,
ee2,
er2,
et2,
re2,
te2,
