6 letter words:
feirie9,
5 letter words:
fever11,
fiver11,
fiere8,
firie8,
reive8,
revie8,
rieve8,
4 letter words:
five10,
erev7,
ever7,
feer7,
fere7,
fier7,
fire7,
free7,
reef7,
reif7,
rife7,
rive7,
veer7,
vier7,
vire7,
3 letter words:
erf6,
eve6,
fee6,
fer6,
fie6,
fir6,
ref6,
rev6,
rif6,
vee6,
vie6,
ere3,
ire3,
ree3,
rei3,
2 letter words:
ef5,
fe5,
if5,
ee2,
er2,
re2,