5 letter words:
knack15,
knock15,
4 letter words:
konk12,
kook12,
conk10,
cook10,
nock10,
kaon8,
koan8,
nook8,
coon6,
3 letter words:
kak11,
koa7,
kon7,
oak7,
oka7,
can5,
con5,
coo5,
oca5,
noo3,
ono3,
oon3,
2 letter words:
ka6,
ko6,
an2,
na2,
no2,
on2,
oo2,