4 letter words:
bozo15,
zobo15,
zoon13,
bond7,
doob7,
pond7,
pood7,
boon6,
noop6,
poon6,
doon5,
3 letter words:
poz14,
dzo13,
zoo12,
bop7,
bod6,
dob6,
dop6,
pod6,
bon5,
boo5,
nob5,
obo5,
oop5,
poo5,
don4,
doo4,
nod4,
noo3,
ono3,
oon3,
2 letter words:
zo11,
bo4,
ob4,
op4,
po4,
do3,
od3,
no2,
on2,
oo2,