5 letter words:
opera7,
paire7,
pareo7,
perai7,
porae7,
4 letter words:
aper6,
pair6,
pare6,
pear6,
peri6,
pier6,
pore6,
prao6,
proa6,
rape6,
reap6,
repo6,
ripe6,
rope6,
aero4,
3 letter words:
ape5,
apo5,
ope5,
par5,
pea5,
per5,
pia5,
pie5,
pir5,
poa5,
poi5,
pre5,
pro5,
rap5,
rep5,
rip5,
air3,
are3,
ear3,
era3,
ire3,
oar3,
ora3,
ore3,
rai3,
rei3,
reo3,
ria3,
roe3,
2 letter words:
op4,
pa4,
pe4,
pi4,
po4,
ae2,
ai2,
ar2,
ea2,
er2,
io2,
oe2,
oi2,
or2,
re2,