6 letter words:
kokopu16,
kouros10,
porous8,
5 letter words:
kooks13,
pooks11,
porks11,
pouks11,
spook11,
korus9,
rooks9,
pours7,
proso7,
roops7,
roups7,
sopor7,
spoor7,
4 letter words:
kook12,
kops10,
pook10,
pork10,
pouk10,
koro8,
kors8,
koru8,
ouks8,
roks8,
rook8,
rusk8,
sook8,
souk8,
oops6,
opus6,
oups6,
poor6,
poos6,
pour6,
proo6,
pros6,
purs6,
roop6,
roup6,
soop6,
soup6,
spur6,
urps6,
ours4,
roos4,
sour4,
3 letter words:
kop9,
kor7,
kos7,
ouk7,
rok7,
suk7,
oop5,
ops5,
oup5,
poo5,
pos5,
pro5,
pur5,
pus5,
sop5,
sup5,
upo5,
ups5,
urp5,
oor3,
oos3,
ors3,
our3,
ous3,
roo3,
sou3,
sur3,
2 letter words:
ko6,
op4,
po4,
up4,
oo2,
or2,
os2,
ou2,
so2,
ur2,
us2,