5 letter words:
oobit7,
4 letter words:
bozo15,
zobo15,
zoic15,
zoot13,
bock12,
boko10,
book10,
cook10,
kobo10,
tick10,
tock10,
koto8,
toko8,
took8,
bito6,
boot6,
cito6,
coit6,
coot6,
obit6,
otic6,
toco6,
3 letter words:
biz14,
coz14,
zit12,
zoo12,
bok9,
ick9,
kob9,
cob7,
kit7,
koi7,
oik7,
bio5,
bit5,
boi5,
boo5,
bot5,
cit5,
coo5,
cot5,
obi5,
obo5,
tic5,
toc5,
oot3,
too3,
2 letter words:
zo11,
ki6,
ko6,
bi4,
bo4,
ob4,
io2,
it2,
oi2,
oo2,
ti2,
to2,