8 letter words:
refreeze20,
7 letter words:
freezer19,
referee10,
6 letter words:
freeze18,
ferret9,
reefer9,
5 letter words:
feeze17,
freer8,
frere8,
refer8,
4 letter words:
feet7,
fere7,
fete7,
free7,
fret7,
reef7,
reft7,
tref7,
rete4,
tree4,
3 letter words:
fez15,
zee12,
eft6,
fee6,
fer6,
fet6,
ref6,
ere3,
err3,
ree3,
ret3,
tee3,
2 letter words:
ef5,
fe5,
er2,
et2,
re2,