sort by Rank | Alpha
| Possible Meanings | Rank |
|---|
| National Order of the Arrow Conferences | *** |
| Next Operation as Customer | *** |
| National Oceanic and Atmospheric | *** |
| Naval Officers Association of Canada | *** |
| neurite outgrowth and adhesion complex | ** |
| Northwestern Ontario Associated Chamber | ** |
| Navel Orange Administrative Committee | ** |
| Network of Australian Consumer | ** |
| Newcastle Outdoor Activities Club | ** |
| Nordic Offroad and Adventure Club | ** |
| Northwest Ohio Aggregation Coalition | ** |
| National Oceanographic and Atmospheric | ** |
| Number of Active Coils | ** |
| Northeast Ohio Academy of Chiropractic | * |
| Northeast Ohio Antiwar Coalition | * |
| National Order of Arrow Conference | * |
| New Orleans Area Council | * |
| Nuclear Operations Analysis Center | * |
| National Operational (Security) Advisory Committee | * |
| Nature of Action Codes | * |