6 letter words:
reeker10,
reefer9,
5 letter words:
krewe12,
fewer11,
freer8,
frere8,
refer8,
4 letter words:
keef11,
kerf11,
week11,
reek8,
ewer7,
fere7,
free7,
reef7,
weer7,
were7,
ruer4,
3 letter words:
kef10,
few9,
eek7,
eke7,
kue7,
uke7,
ewe6,
fee6,
fer6,
feu6,
fur6,
ref6,
wee6,
ere3,
err3,
ree3,
rue3,
2 letter words:
ef5,
fe5,
we5,
er2,
re2,