6 letter words:
birler8,
5 letter words:
birle7,
brier7,
liber7,
4 letter words:
bier6,
bile6,
birl6,
birr6,
brei6,
brer6,
brie6,
leir4,
lier4,
lire4,
riel4,
rile4,
3 letter words:
bel5,
brr5,
lib5,
reb5,
rib5,
err3,
ire3,
lei3,
lie3,
rei3,
2 letter words:
be4,
bi4,
el2,
er2,
li2,
re2,