5 letter words:
billy10,
4 letter words:
zill13,
yolk11,
bilk10,
kill8,
kilo8,
illy7,
lily7,
oily7,
yill7,
bill6,
boil6,
boll6,
lilo4,
3 letter words:
biz14,
yok10,
kob9,
boy8,
yob8,
ilk7,
koi7,
bio5,
lib5,
lob5,
obi5,
ill3,
oil3,
2 letter words:
by7,
ki6,
oy5,
yo5,
bi4,
bo4,
li2,
lo2,
oi2,