6 letter words:
porous8,
5 letter words:
pours7,
proso7,
roops7,
roups7,
sopor7,
spoor7,
4 letter words:
oops6,
opus6,
oups6,
poor6,
poos6,
pour6,
proo6,
pros6,
purs6,
roop6,
roup6,
soop6,
soup6,
spur6,
urps6,
ours4,
roos4,
sour4,
3 letter words:
oop5,
ops5,
oup5,
poo5,
pos5,
pro5,
pur5,
pus5,
sop5,
sup5,
upo5,
ups5,
urp5,
oor3,
oos3,
ors3,
our3,
ous3,
roo3,
sou3,
sur3,
2 letter words:
op4,
po4,
up4,
oo2,
or2,
os2,
ou2,
so2,
ur2,
us2,