sort by Rank | Alpha
| Possible Meanings | Rank |
|---|
| National Operating Committee on Standards | **** |
| Nightmare on Chat Street | *** |
| National Oceanographic Center Southampton | *** |
| New Orleans Cold Storage | *** |
| National Oil Company of Sudan | ** |
| North Olympic Crime Stoppers | ** |
| North Oakland County Storytellers | ** |
| Nucleo Operativo Corpi Speciali | * |
| National Open Cup Schedule | * |
| National Over Cup Schedule | * |