7 letter words:
furrier10,
hurrier10,
6 letter words:
fuhrer12,
5 letter words:
firer8,
frier8,
hirer8,
rifer8,
4 letter words:
fire7,
heir7,
hire7,
reif7,
rife7,
ruer4,
3 letter words:
feh9,
fer6,
feu6,
fie6,
fir6,
fur6,
her6,
hie6,
hue6,
ref6,
rif6,
err3,
ire3,
rei3,
rue3,
2 letter words:
ef5,
eh5,
fe5,
he5,
hi5,
if5,
uh5,
er2,
re2,