| Oracle Arena | Oracle Arena |
| Oracle bone | Huesos oraculares |
| Oracle bone script | Huesos oraculares |
| Oracle Corporation | Oracle Corporation |
| Oracle Database | Oracle |
| Oracle machine | Oracle |
| Oracle script | Huesos oraculares |
| oracular | del oráculo |
| Oradea | Oradea |
| Oradour-sur-Glane | Oradour-sur-Glane |
| Orahovica | Orahovica |
| Oraison | Oración |
| oral | oral |
| Oral and maxillofacial surgery | Cirugía Oral y Máxilofacial |
| Oral Fixation Tour | Tour Fijación Oral |
| Oral hygiene | Higiene bucodental |
| Oral intercourse | Sexo oral |
| Oral rehydration therapy | Sales de Rehidratación Oral |
| oral sex | sexo oral |
| Oral tradition | Tradición oral |
| orally | verbalmente |
| Oran | Orán |
| Oran Province | Provincia de Orán |
| orang | orangután |
| Orang National Park | Parque Nacional de Orang |
| Orang Pendek | Orang Pendek |
| orang-outang | orangután |
| orang-utan | orangután |
| orange | naranja |
| Orange blossom | Azahar |
| Orange County | Condado de Orange |
| Orange Crush | Crush |
| Orange Ekstraklasa | Ekstraklasa |
| Orange España | Orange España |
| Orange Free State | Estado Libre de Orange |
| Orange Institution | Orden de Orange |
| orange juice | jugo de naranja |
| Orange Livebox | Livebox |
| orange peel | cáscara |
| Orange Polska | Orange |
| Orange Prize for Fiction | Orange |
| Orange Range | Orange Range |
| Orange Revolution | Revolución Naranja |
| Orange River | Río Orange |
| Orange River Colony | Colonia del Río Orange |
| Orange SA | Orange España |
| Orange Tip | Aurora |
| Orange Walk District | Distrito de Orange Walk |
| Orange Walk Town | Orange Walk Town |
| Orange-bellied Parrot | Neophema chrysogaster |
| Orange-breasted Falcon | Falco deiroleucus |
| Orange-footed Scrubfowl | Megapodius reinwardt |
| orange-red | de color zanahoria |
| orange-tree | naranjo |
| Orange-winged Amazon | Amazona amazonica |
| orangeade | naranjada |
| orangery | invernadero de naranjos |
| orangoutan | orangután |
| orangoutang | orangután |
| orangutan | orangután |
| Oranjemund | Oranjemund |
| Oranjemund Constituency | Distrito electoral de Oranjemund |
| Oranjestad | Oranjestad |
| Orascom Telecom Holding | Orascom Telecom |
| orate | recitar |
| oration | disertación |
| orator | orador |
