5 letter words:
bocks13,
books11,
cooks11,
kobos11,
socko11,
4 letter words:
bock12,
book10,
bosk10,
cook10,
kobo10,
kobs10,
sock10,
cobs8,
sook8,
boos6,
coos6,
3 letter words:
kob9,
cob7,
kos7,
boo5,
bos5,
coo5,
cos5,
sob5,
2 letter words:
bo4,
os2,
so2,