sort by Rank | Alpha
| Possible Meanings | Rank |
|---|
| Organic Not Certified | **** |
| Office of National Coordinator | **** |
| Operational Navigation Charts | *** |
| Ocean Nutrition Canada | *** |
| Official N00b Community | *** |
| Ocean Nourishment Corporation | *** |
| Open Network Controller | *** |
| Oromo National Congress | *** |
| Opera Nazionale Combattenti | *** |
| Orutsararmiut Native Council | *** |
| Ojczyzna Nauka Cnota | *** |
| Organic Nanomaterials Center | *** |
| Ogden Nature Center | *** |
| Oxford Nazarene Church | *** |
| Oregon Nordic Club | *** |
| Orthopaedic Nurse Certified | ** |
| oculomotor nuclear complex | ** |
| older normal controls | ** |
| Olfactory neuroepithelial cells | ** |
| Ondernemers Netwerk Capelle | ** |
| Operational Navigational Chart | ** |
| Oranje Nassau College | ** |
| Orthopaedic Nurses Certification | ** |
| Operational Navigational Charts | ** |
| Operational Naval Committee | ** |
| Oregon Nazarene Church | ** |
| One Nations Creation | ** |
| Optic Nerve Communications | ** |
| Office of Neighborhood Coordination | ** |
| Obstetric and Neonatal Complication | ** |
| Open Networking Consortium | ** |
| One Night Count | ** |
| Orthopaedic Nursing Certificate | ** |
| Office of News and Communications | ** |
| Office of Noise Control | ** |
| Over the Needle Catheter | ** |
| Ordinary National Certificates | ** |
| Orthopedic Nurse Certification | ** |
| Ouzinkie Native Corporation | ** |
| Open Network Consortium | ** |
| Of the Orthopaedic Nurses Certification | * |
| Old Newbury Crafters | * |
| Orthopedic Nurse Certified | * |
| Operations and Control | * |
| Outdoor Nature Club | * |
| Operatinal Navigation Charts | * |
| Observing Noctilucent Cloud | * |
| Observing Noctilucent Clouds | * |
| Oceania Newsletter Center | * |
| Oceanographic Navigation Chart | * |
| Office of the Narcotics Control | * |
| Office of the National Culture | * |
| Official Nascar Catalogue | * |
| On Nature of Consciousness | * |
| Ontario Northern College | * |
| Optional Network Configuration | * |