sort by Rank | Alpha
| Possible Meanings | Rank |
|---|
| Oahu Civil Defense Agency | *** |
| Oracle Certified Database Associate | *** |
| Ouachita Civil Defense Agency | *** |
| Outpatient Chemical Dependency Agency | *** |
| Office of the District Attorney | *** |
| Oranmore Community Development Association | ** |
| Ohio Career Development Association | ** |
| Ontario Combined Driving Association | ** |
| Open Cluster Diagrams Atlas | ** |
| Organizational Culture and Diversity Assessment | ** |
| Ohio CSEA Directors Association | ** |
| Oklahoma Choral Directors Association | * |
| One Control and Double Attainments | * |
| Orange County Dressage Association | * |
| Organizational Climate and Diversity Assessment | * |
| Oracle Certified Database Administrator | * |
| Orange County Development Agency | * |
| Observatoire de la Cote DAzur | * |