5 letter words:
kooks13,
spook11,
swoop10,
woops10,
4 letter words:
kook12,
woks11,
kops10,
pows9,
swop9,
wops9,
sook8,
woos7,
oops6,
poos6,
3 letter words:
wok10,
kop9,
pow8,
wop8,
kos7,
sow6,
woo6,
wos6,
ops5,
poo5,
sop5,
2 letter words:
ow5,
wo5,
op4,
os2,
so2,