8 letter words:
billyboy18,
6 letter words:
billyo11,
5 letter words:
bilby12,
lobby12,
billy10,
bilbo9,
4 letter words:
zill13,
blob8,
illy7,
lily7,
oily7,
yill7,
bill6,
boil6,
boll6,
lobi6,
lilo4,
3 letter words:
biz14,
zol12,
boy8,
yob8,
bib7,
bob7,
loy6,
bio5,
boi5,
lib5,
lob5,
obi5,
ill3,
oil3,
2 letter words:
zo11,
by7,
oy5,
yo5,
bi4,
bo4,
ob4,
io2,
li2,
lo2,
oi2,