sort by Rank | Alpha
| Possible Meanings | Rank |
|---|
| Office of Naval History | *** |
| older normal-hearing | ** |
| Orange Nursing Home | ** |
| Optic Nerve Heads | ** |
| Oxygen Nitrogen and Hydrogen | * |
| Organisme National Habilité | * |
| Ouderenpartij Noord Holland | * |
| Operafest of New Hampshire | * |