8 letter words:
billbook16,
5 letter words:
bilbo9,
bobol9,
oboli7,
4 letter words:
bilk10,
boko10,
book10,
kobo10,
blob8,
boob8,
kill8,
kilo8,
kolo8,
look8,
bill6,
boil6,
boll6,
bolo6,
bool6,
lobi6,
lobo6,
obol6,
lilo4,
olio4,
3 letter words:
bok9,
kob9,
bib7,
bob7,
ilk7,
koi7,
oik7,
bio5,
boi5,
boo5,
lib5,
lob5,
obi5,
obo5,
ill3,
loo3,
oil3,
2 letter words:
ki6,
ko6,
bi4,
bo4,
ob4,
io2,
li2,
lo2,
oi2,
oo2,
