7 letter words:
freezer19,
6 letter words:
freeze18,
geezer16,
reefer9,
5 letter words:
feeze17,
freer8,
frere8,
refer8,
4 letter words:
geez14,
fere7,
free7,
reef7,
eger5,
gree5,
3 letter words:
fez15,
zee12,
eff9,
fee6,
fer6,
ref6,
erg4,
gee4,
reg4,
ere3,
err3,
ree3,
2 letter words:
ef5,
fe5,
er2,
re2,