9 letter words:
knockoffs25,
8 letter words:
knockoff24,
6 letter words:
knocks16,
5 letter words:
knock15,
coffs13,
konks13,
kooks13,
scoff13,
conks11,
cooks11,
nocks11,
socko11,
coofs10,
nooks9,
snook9,
coons7,
4 letter words:
coff12,
konk12,
kook12,
conk10,
cook10,
nock10,
offs10,
sock10,
coof9,
nook8,
sook8,
fons7,
cons6,
coon6,
coos6,
onos4,
soon4,
3 letter words:
off9,
kos7,
fon6,
con5,
coo5,
cos5,
noo3,
nos3,
ono3,
ons3,
son3,
2 letter words:
of5,
no2,
on2,
os2,
so2,