5 letter words:
broil7,
oboli7,
4 letter words:
birl6,
biro6,
boil6,
bolo6,
boor6,
brio6,
broo6,
lobo6,
obol6,
olio4,
roil4,
3 letter words:
bio5,
boo5,
bro5,
lib5,
lob5,
obi5,
orb5,
rib5,
rob5,
loo3,
oil3,
2 letter words:
bi4,
bo4,
li2,
lo2,
oi2,
or2,