6 letter words:
bookoo12,
boocoo10,
4 letter words:
bozo15,
zoic15,
wick13,
bock12,
book10,
cook10,
kobo10,
3 letter words:
wiz15,
biz14,
coz14,
zoo12,
wok10,
ick9,
kob9,
bow8,
cow8,
cob7,
koi7,
woo6,
bio5,
boo5,
coo5,
obi5,
2 letter words:
ki6,
ow5,
wo5,
bi4,
bo4,
oi2,