7 letter words:
enrober9,
onerier7,
6 letter words:
bonier8,
boreen8,
briner8,
enrobe8,
orbier8,
rebore8,
reborn8,
ironer6,
5 letter words:
biner7,
boner7,
borer7,
borne7,
brier7,
brine7,
robin7,
irone5,
4 letter words:
been6,
beer6,
bene6,
bier6,
bine6,
biro6,
birr6,
bone6,
bore6,
born6,
bree6,
bren6,
brie6,
brin6,
brio6,
ebon6,
robe6,
erne4,
inro4,
iron4,
noir4,
nori4,
rein4,
3 letter words:
bee5,
ben5,
bin5,
bio5,
bro5,
brr5,
neb5,
nib5,
nob5,
obe5,
obi5,
orb5,
reb5,
rib5,
rob5,
eon3,
ere3,
ern3,
err3,
ion3,
ire3,
nee3,
nor3,
one3,
ore3,
ree3,
rei3,
rin3,
roe3,
2 letter words:
be4,
bi4,
bo4,
en2,
er2,
in2,
ne2,
no2,
oe2,
oi2,
on2,
or2,
re2,