sort by Rank | Alpha
| Possible Meanings | Rank |
| New Orleans Association | **** |
| National Olympic Academy | **** |
| Notes on Anthropology | **** |
| Number of Ancestors | **** |
| Notice of Appeal | **** |
| Night of Artists | **** |
| National Orchestral Association | **** |
| Notice of Allocation | **** |
| National Outsourcing Association | **** |
| Nitric Oxide Analyzers | **** |
| National Oceanic and Atmospheric | **** |
| National Organizers Alliance | *** |
| Networks Organization Action | *** |
| NetworkOA the Organizations Alive | *** |
| National Oncology Alliance | *** |
| Naval Open Architecture | *** |
| Notice of Arraignment | *** |
| National Opera Association | *** |
| Nonprofit Organization Administration | *** |
| Naturhistoriske Onsdags Aftener | *** |
| National Oceanic Atmospheric | *** |
| Number of Atoms | *** |
| Nor Oeste Argentino | *** |
| National Oceanographic and Atmospheric | *** |
| National Office Assist | *** |
| Nitric Oxide Analyser | *** |
| NOTICES of Action | *** |
| National Opera Award | *** |
| NONLINEAR OPTICS APPLICATIONS | *** |
| Najmias Office for Architecture | *** |
| Notice of Appearance | *** |
| Non Obstructive Azoospermia | *** |
| Nintendo of Amerika | *** |
| N6-octylamine adenosine | ** |
| narrow occludable angles | ** |
| naturally occurring astigmatism | ** |
| non-opioid-analgesics | ** |
| Notice of Admission | ** |
| nucleus octavus anterior | ** |
| nucleus olfactorius anterior | ** |
| number of admissions | ** |
| Newah Organization of America | ** |
| Nashville Opera Association | ** |
| Negley Ott Associates | ** |
| Nursing Organizations Alliance | ** |
| Noodles of Asia | ** |
| Note Object Attribute | ** |
| Norfolk Ornithologists Association | ** |
| No Overhead Autoconfiguration | ** |
| Nitric Oxide Analyzer | ** |
| Native on Appearance | ** |
| National Operator Assistance | ** |
| Nederlands Onderzoekscentrum Arbeidsmarkt | ** |
| National Open Apprenticeship | ** |
| Nearfield Optical Analysis | ** |
| Nueva Organizacion Anticomunista | ** |
| Nearest Onshore Area | ** |
| Nippon Origami Association | ** |
| National Olympic Assembly | ** |
| Notary of Arizona | ** |
| Notices of Acceptance | ** |
| Noodles of Amsterdam | ** |
| National Officers Association | ** |
| Nueva Organización Anticomunista | ** |
| National Ocean Administration | ** |
| National Ophthalmic Association | ** |
| National Organzier Alliance | ** |
| Not on Anything | ** |
| men with nonobstructive azoospermia | * |
| National Oceanographic Association | * |
| Nigerian Optometric Association | * |
| Nordic Ostomy Association | * |
| Notification to the Applicant | * |
| NSWC Office Automation | * |
| National Obervatory of Athens | * |
| Net Occupiable Area | * |
| Newspaper Operations Association | * |
| Noncommissioned Officer Academy | * |
| Northwest Opal Association | * |
| New Orleans Aquarium | * |
| National Oceanographic and Atmos | * |
| National Office Agencies | * |
| Nature Or Abundance | * |
| Network Oriented Application | * |
| Notice Of Application | * |
| Notice of Obligation Authority | * |
| Notification Of Actions | * |
| Nueva Organizaci o n Anticomunista | * |
| Nueva Organizaci=n Anticomunista | * |
| Number Of Applicant | * |