Mammoth Uncensored Word List:
69 - 6 letter words starting with or

orache oracle orally orange orangs orangy orants oraria orated orates orator orbier orbing orbita orbits orbity orcein orchat orchel orchid orchil orchis orcine orcins ordain ordeal orders ordure oreads oreide orexis orfray organa organs orgasm orgeat orgiac orgias orgies orgone orgues oribis oriels orient orifex origan origin orihou oriole orisha orison orixas orlons orlops ormers ormolu ornate ornery orogen oroide orphan orphic orpine orpins orrery orrice orthos orvals oryxes