sort by Rank | Alpha
| Possible Meanings | Rank |
| Osoyoos Indian Band | ***** |
| Olympic Incline Bench | **** |
| Orient Institut Beirut | *** |
| Oman International Bank | *** |
| Ocean Island Basalts | *** |
| Objects in Bioinformatics | *** |
| Oceanic Island Basalts | *** |
| Optische Interferenz Bauelemente | *** |
| obturator internus bursa | ** |
| oral implant bridges | ** |
| osmiophilic inclusion bodies | ** |
| osseointegrated implant bridge | ** |
| Osseointegrated implant bridges | ** |
| Outpatient Itemized Billing | ** |
| Office of International Business | ** |
| Operating Impedance Bridge | ** |
| Orient Institute Beirut | ** |
| Otago Infantry Battalion | ** |
| Open Internet Billing | ** |
| Oost Indische Bereiding | * |
| Ouachita Independent Bank | * |
| Office of Bibliography | * |
| Oregon Investment Board | * |
| Oceans and Ice Branch | * |
| Otago Infantry Brigade | * |
| Organismal and Integrative Biology | * |
| Olympic Installations Board | * |
| Order of Ikhamanga Bronze | * |
| Orbiter Interface Box | * |
| Operations Intelligence Branch | * |
| Organized Index of Bicycles | * |
| Original Inflatable Bolster | * |
| Overseas Insurance Brokers | * |