7 letter words:
rockoon13,
5 letter words:
cronk11,
crook11,
kroon9,
corno7,
croon7,
4 letter words:
conk10,
cook10,
cork10,
nock10,
rock10,
koro8,
nook8,
nork8,
rook8,
coon6,
corn6,
roon4,
3 letter words:
kon7,
kor7,
rok7,
con5,
coo5,
cor5,
orc5,
roc5,
noo3,
nor3,
ono3,
oon3,
oor3,
roo3,
2 letter words:
ko6,
no2,
on2,
oo2,
or2,