sort by Rank | Alpha
| Possible Meanings | Rank |
| Net Operating Losses | **** |
| Niezidentyfikowany Obiekt Latajacy | **** |
| Nitric Oxide Level | *** |
| Notices of Liability | *** |
| number of lines | *** |
| Notes on Literacy | *** |
| Number of Levels | *** |
| Northern Ohio League | *** |
| North Oakland Library (Oakland, CA) | *** |
| Networks on Line | *** |
| National Orienteering League | *** |
| Networked Open Learning | *** |
| National Outdoors Leadership | *** |
| National Onion Labs | *** |
| Navigator of Life | *** |
| Naval Ordinance Laboratory | *** |
| Narren Ober Liga | *** |
| Nano Oxide Layers | ** |
| National Oceanographic Library | ** |
| Neptun Orient Lines | ** |
| Neurobiology of Lipids | ** |
| Neptune Overseas Ltd | ** |
| New Opportunities for Logistics | ** |
| Never Offline Logo | ** |
| Northern Offshore Limited | ** |
| NHL Online Liga | ** |
| Neptune Overseas Limited | ** |
| Notice of Lease | ** |
| NEET OET LOTTUM | * |
| Night on Leadership | * |
| Notices of Level | * |
| Neighborhoods on Line | * |
| Normal Operating Losses | * |
| New Orleans Links | * |
| Nick Operatic Links | * |
| Nirvana On Line | * |
| Novato Online List | * |
| Number One Landfill | * |