7 letter words:
fuehrer13,
6 letter words:
fuhrer12,
unfree9,
5 letter words:
freer8,
frere8,
refer8,
enure5,
rerun5,
4 letter words:
enuf7,
fere7,
fern7,
free7,
here7,
hern7,
reef7,
erne4,
ruer4,
rune4,
3 letter words:
feh9,
fee6,
fen6,
fer6,
feu6,
fun6,
fur6,
hen6,
her6,
hue6,
hun6,
ref6,
ere3,
ern3,
err3,
nee3,
ree3,
rue3,
run3,
urn3,
2 letter words:
ef5,
eh5,
fe5,
he5,
uh5,
en2,
er2,
ne2,
nu2,
re2,
un2,