5 letter words:
jocko18,
cajon14,
4 letter words:
jack17,
jock17,
jook15,
joco13,
conk10,
cook10,
nock10,
kana8,
kaon8,
koan8,
nook8,
coon6,
anoa4,
3 letter words:
jak14,
aka7,
koa7,
kon7,
oak7,
oka7,
caa5,
can5,
con5,
coo5,
oca5,
ana3,
noo3,
ono3,
oon3,
2 letter words:
ja9,
jo9,
ka6,
ko6,
aa2,
an2,
na2,
no2,
on2,
oo2,