7 letter words:
bourree9,
6 letter words:
burler8,
burrer8,
rebore8,
rouble8,
5 letter words:
bluer7,
borer7,
boule7,
burro7,
rebel7,
roble7,
rubel7,
ruble7,
error5,
lurer5,
ruler5,
4 letter words:
beer6,
blue6,
blur6,
bole6,
bore6,
bree6,
brrr6,
burl6,
burr6,
lobe6,
lube6,
robe6,
rube6,
euro4,
leer4,
lore4,
lour4,
lure4,
orle4,
reel4,
role4,
roue4,
ruer4,
rule4,
3 letter words:
bee5,
bel5,
bro5,
brr5,
bur5,
lob5,
obe5,
orb5,
reb5,
rob5,
rub5,
urb5,
eel3,
ere3,
err3,
lee3,
leu3,
ole3,
ore3,
our3,
ree3,
roe3,
rue3,
2 letter words:
be4,
bo4,
el2,
er2,
lo2,
oe2,
or2,
re2,