6 letter words:
doppio11,
poprin10,
indoor7,
5 letter words:
ippon9,
droop8,
poind8,
orpin7,
poori7,
porno7,
prion7,
proin7,
donor6,
doorn6,
nidor6,
rondo6,
4 letter words:
oppo8,
poop8,
prop8,
ripp8,
dorp7,
drip7,
drop7,
pond7,
pood7,
prod7,
noop6,
pion6,
pirn6,
poon6,
poor6,
porn6,
proo6,
roop6,
dino5,
doon5,
door5,
nodi5,
odor5,
ordo5,
rind5,
rood5,
inro4,
iron4,
noir4,
nori4,
roin4,
roon4,
3 letter words:
pip7,
pop7,
dip6,
dop6,
pod6,
nip5,
oop5,
pin5,
pir5,
poi5,
poo5,
pro5,
rip5,
din4,
don4,
doo4,
dor4,
nid4,
nod4,
ord4,
rid4,
rod4,
ion3,
noo3,
nor3,
ono3,
oon3,
oor3,
rin3,
roo3,
2 letter words:
op4,
pi4,
po4,
di3,
do3,
id3,
od3,
in2,
io2,
no2,
oi2,
on2,
oo2,
or2,