5 letter words:
wokka16,
4 letter words:
kook12,
boak10,
boko10,
book10,
kobo10,
3 letter words:
kak11,
kaw10,
kow10,
wok10,
bok9,
kab9,
kob9,
bow8,
wab8,
koa7,
oak7,
oka7,
woo6,
abo5,
boa5,
boo5,
oba5,
obo5,
2 letter words:
ka6,
ko6,
aw5,
ow5,
wo5,
ab4,
ba4,
bo4,
ob4,
oo2,