sort by Rank | Alpha
| Possible Meanings | Rank |
|---|
| National Championship in A | **** |
| Necessary Any and All | **** |
| National Champions in A | *** |
| Northern Colorado Artist Association | *** |
| North Carolina to Advance | *** |
| National Championships After A | *** |
| North Carolina Alumni Association | *** |
| Ngorongoro Conservation Area Authority | *** |
| Nigeria Civil Aviation Authority | *** |
| National Capital Attractions Association | *** |
| National College Athletics Association | *** |
| National Consortium for Academic | *** |
| Newspaper of the Catholic Archdiocese of Atlanta | *** |
| North Carolina AandT Aggies | ** |
| National Civil Aviation Administration | ** |
| National Christian Athletic Association | ** |
| National Center for Antibiotics Analysis | ** |
| National Championships in Auburn | ** |
| National Collegiate Athletic Associate | ** |
| National Coalition for Active Ageing | ** |
| Norwegian Civil Aviation Administration | ** |
| National Coaches Association of America | ** |
| North Carolina Airports Association | ** |
| National Clinical Assessment Agency | ** |
| National Council of Art Administrators | ** |
| Newton County Arts Association | ** |
| National Colligate Athletic Association | ** |
| National Collegiate Association of America | ** |
| North Carolina to ACC | ** |
| Norwegian Civil Aviation Authority | ** |
| News Coverage of All | ** |
| North Carolina Aerospace Alliance | ** |
| North Clayton Athletic Association | ** |
| Not Caring About Anything | ** |
| Northern California Anesthesia Associates | ** |
| National Coalition on Affirmative Action | * |
| National Council on Alcoholism and Addiction | * |
| North Central Activities Association | * |
| National Collegiate Athlectic Association | * |
| North Central Area Advisory | * |
| North County Agricultural Area | * |
| Nuclear Consumables Annual Analysis | * |
| National Campaign for the Arts Australia | * |
| North Carolina Aggregates Association | * |