6 letter words:
effete12,
befret11,
bereft11,
fetter9,
better8,
teeter6,
terete6,
5 letter words:
beret7,
4 letter words:
teff10,
beef9,
feeb9,
feet7,
fere7,
fete7,
free7,
fret7,
reef7,
reft7,
tref7,
beer6,
beet6,
bree6,
rete4,
tree4,
tret4,
3 letter words:
eff9,
eft6,
fee6,
fer6,
fet6,
ref6,
bee5,
bet5,
reb5,
ere3,
ree3,
ret3,
tee3,
tet3,
2 letter words:
ef5,
fe5,
be4,
er2,
et2,
re2,