6 letter words:
reveur9,
5 letter words:
fever11,
ferer8,
freer8,
frere8,
refer8,
revue8,
4 letter words:
erev7,
eruv7,
ever7,
feer7,
fere7,
free7,
furr7,
reef7,
veer7,
ruer4,
3 letter words:
erf6,
eve6,
fee6,
fer6,
feu6,
fur6,
ref6,
rev6,
vee6,
ere3,
err3,
ree3,
rue3,
ure3,
2 letter words:
ef5,
fe5,
ee2,
er2,
re2,
ur2,