sort by Rank | Alpha
| Possible Meanings | Rank |
|---|
| Of the Implementation | ****** |
| Overseas Investment Office | ***** |
| Office of Independent Oversight | ***** |
| Opera in the Ozarks | **** |
| Open Infrastructure for Outcomes | **** |
| Oil Independent Oakland | **** |
| Offentlig Information Online | **** |
| Opportunities in Options | *** |
| On the Implementation | *** |
| Onderzoekers in Opleiding | *** |
| Oil Industry Outreach | *** |
| oral iodized oil | ** |
| Office of the Inspector | ** |
| OKLAHOMANS FOR INDIAN OPPORTUNITY | ** |
| Og Intentionen Om | ** |
| Ohio Identification Officers | ** |
| Orthopaedic Institute of Ohio | ** |
| Office of International Organizations | ** |
| Office Inventory Ordering | ** |
| Office of Integrity and Oversight | ** |
| Office of the Insurance Ombudsman | * |
| Operator Interface Unit | * |
| Office of International Operations | * |