9 letter words:
paratroop13,
7 letter words:
rapport11,
6 letter words:
parrot8,
raptor8,
torpor8,
orator6,
5 letter words:
apart7,
aport7,
troop7,
aorta5,
rotor5,
4 letter words:
papa8,
poop8,
prop8,
atap6,
atop6,
para6,
parr6,
part6,
poor6,
port6,
prao6,
prat6,
proa6,
rapt6,
tapa6,
tarp6,
topo6,
trap6,
trop6,
orra4,
rato4,
roar4,
root4,
rota4,
roto4,
taro4,
tora4,
toro4,
torr4,
3 letter words:
app7,
pap7,
pop7,
apo5,
apt5,
opt5,
par5,
pat5,
poo5,
pot5,
pro5,
rap5,
tap5,
top5,
art3,
oar3,
oat3,
oot3,
ora3,
ort3,
rat3,
rot3,
tao3,
tar3,
too3,
tor3,
2 letter words:
op4,
pa4,
aa2,
ar2,
at2,
or2,
ta2,
to2,