5 letter words:
kooks13,
bokos11,
books11,
kobos11,
4 letter words:
kook12,
kows11,
woks11,
boko10,
boks10,
book10,
bosk10,
kobo10,
kobs10,
bows9,
swob9,
sook8,
woos7,
boos6,
obos6,
3 letter words:
kow10,
wok10,
bok9,
kob9,
bow8,
kos7,
sow6,
woo6,
wos6,
boo5,
bos5,
obo5,
obs5,
sob5,
oos3,
2 letter words:
ko6,
ow5,
wo5,
bo4,
ob4,
oo2,
os2,
so2,