sort by Rank | Alpha
| Possible Meanings | Rank |
| Organisatie Oude Muziek | **** |
| Object Oriented Modelling | *** |
| Object Oriented Methodology | *** |
| Object Orientated Modelling | *** |
| Order of Mayhem | *** |
| Outlook Object Model | *** |
| Office of Occupational Medicine | ** |
| orbicularis oris muscle | ** |
| Outrage of modesty | ** |
| ozone-oxygen mixture | ** |
| OMG Object Management | ** |
| oman oil marketing | ** |
| Order of the Magi | ** |
| Own Organization Monograph | ** |
| Object Oriented Methodologies | ** |
| Opleiding Ontwikkeling Metaalbewerking | ** |
| Officers Open Mess | ** |
| Old Order Mennonites | ** |
| Office of the Manager | ** |
| OpenURL Object Model | ** |
| Opticians of Manitoba | ** |
| Object Oriented Middleware | * |
| Organic Organizing Matrix | * |
| Organizacijata Obedineti Makedonci | * |
| Object Orientation Manipulator | * |
| Opaque and Ore Minerals | * |
| Object Orientation Modeling | * |
| Office Of Management | * |
| Office of Operations and Management | * |
| Omnidirectional Orientation Monitor | * |
| Orange Order Marchers | * |
| ORBATS Orders of March | * |
| Order Or Modification | * |
| Organization Odyssey Mind | * |
| Organization Office of Mineral | * |
| Oxford Oasis Mining | * |