9 letter words:
nonporous11,
8 letter words:
pronouns10,
7 letter words:
nonpoor9,
nonpros9,
pronoun9,
6 letter words:
pornos8,
porous8,
5 letter words:
noops7,
noups7,
poons7,
porno7,
porns7,
pours7,
proso7,
roops7,
roups7,
snoop7,
sopor7,
spoon7,
spoor7,
spurn7,
noons5,
nouns5,
roons5,
urson5,
4 letter words:
noop6,
noup6,
oops6,
opus6,
oups6,
pons6,
poon6,
poor6,
poos6,
porn6,
pour6,
proo6,
pros6,
puns6,
purs6,
roop6,
roup6,
soop6,
soup6,
spun6,
spur6,
upon6,
urps6,
noon4,
noun4,
nous4,
nuns4,
nurs4,
onos4,
onus4,
oons4,
ourn4,
ours4,
roon4,
roos4,
runs4,
soon4,
sorn4,
sour4,
sunn4,
urns4,
3 letter words:
oop5,
ops5,
oup5,
poo5,
pos5,
pro5,
pun5,
pur5,
pus5,
sop5,
sup5,
upo5,
ups5,
urp5,
non3,
noo3,
nor3,
nos3,
nun3,
nur3,
nus3,
ono3,
ons3,
oon3,
oor3,
oos3,
ors3,
our3,
ous3,
roo3,
run3,
son3,
sou3,
sun3,
sur3,
uns3,
urn3,
2 letter words:
op4,
po4,
up4,
no2,
nu2,
on2,
oo2,
or2,
os2,
ou2,
so2,
un2,
ur2,
us2,