7 letter words:
beerier9,
6 letter words:
briner8,
eerier6,
5 letter words:
benne7,
benni7,
biner7,
brier7,
brine7,
eerie5,
inner5,
renin5,
4 letter words:
been6,
beer6,
bene6,
bier6,
bine6,
birr6,
bree6,
bren6,
brie6,
brin6,
erne4,
nene4,
nine4,
rein4,
3 letter words:
bee5,
ben5,
bin5,
brr5,
neb5,
nib5,
reb5,
rib5,
ere3,
ern3,
err3,
inn3,
ire3,
nee3,
ree3,
rei3,
rin3,
2 letter words:
be4,
bi4,
en2,
er2,
in2,
ne2,
re2,