7 letter words:
cheerer12,
6 letter words:
reefer9,
5 letter words:
cheer10,
freer8,
frere8,
refer8,
4 letter words:
chef12,
eche9,
fere7,
free7,
here7,
reef7,
cere6,
3 letter words:
feh9,
fee6,
fer6,
her6,
ref6,
cee5,
rec5,
ere3,
err3,
ree3,
2 letter words:
ef5,
eh5,
fe5,
he5,
er2,
re2,