5 letter words:
zooid15,
4 letter words:
bozo15,
zobo15,
boob8,
doob7,
3 letter words:
biz14,
dzo13,
zoo12,
bib7,
bob7,
bid6,
bod6,
dib6,
dob6,
bio5,
boi5,
boo5,
obi5,
obo5,
doo4,
2 letter words:
zo11,
bi4,
bo4,
ob4,
di3,
do3,
id3,
od3,
io2,
oi2,
oo2,