6 letter words:
before11,
ourebi8,
5 letter words:
brief10,
fiber10,
fibre10,
ourie5,
4 letter words:
beef9,
feeb9,
forb9,
fere7,
fire7,
fore7,
four7,
free7,
froe7,
reef7,
reif7,
rife7,
beer6,
bier6,
biro6,
bore6,
bree6,
brie6,
brio6,
robe6,
rube6,
euro4,
roue4,
3 letter words:
fib8,
fob8,
fub8,
fee6,
fer6,
feu6,
fie6,
fir6,
foe6,
for6,
fou6,
fro6,
fur6,
ref6,
rif6,
bee5,
bio5,
bro5,
bur5,
obe5,
obi5,
orb5,
reb5,
rib5,
rob5,
rub5,
urb5,
ere3,
ire3,
ore3,
our3,
ree3,
rei3,
roe3,
rue3,
2 letter words:
ef5,
fe5,
if5,
of5,
be4,
bi4,
bo4,
er2,
oe2,
oi2,
or2,
re2,