| Acronym | Sense | Language | Topics |
|---|---|---|---|
| NFAO | Numerical Functional Analysis and Optimization | In English | → Serial publications, periodicals → Mathematics |
| NFCIP-1 | Near Field Communication Interface and Protocol-1 | In English | → Software → Telecommunications |
| NFF | National Flag Foundation (www.americanflags.org) | In English | → Foundations → Flags, banners |
| NFIA | Netherlands Foreign Investment Agency | In English | → 33972 |
| NFLNA | Noise Figure Low-Noise Amplifier | In English | |
| NFO | National Farmers Organization (www.nfo.org) | In English | → Organizations and associations → Agricultural sciences |
| NFPA | National Fire Prevention Association | In English | → Associations |
| NFR | Network Flight Recorder | In English | → Software → Networks, communication |
| NFS | NASA FAR Supplement | In English | → Astronautics → United States |
| NFS | Network File Server | In English | → Computer hardware → Networks, communication → Files |
| NFS | Nozzle Flow Sensor | In English | |
| NFS | Nordic Flag Society (www.nordicflagsociety.org) = NFS | Nordisk Flaggselskap | In Norwegian = NFS | Nordisk Flagselskab | In Danish = NFS | Pohjoismaiden Lippuseura | In Finnish = NFS | Norræna Fánafélagið | In Icelandic = NFS | Nordiska Flaggsällskapet | In Swedish |
In English | → Organizations and associations → 6299 |
| NFU | National Farmers Union (www.nfuonline.com) | In English | → Organizations and associations → Agricultural sciences |
| NGA | National Geospatial-Intelligence Agency | In English | → Central administration → Astronautics |
| NGA | National Governors Association | In English | → Associations → Public administration, government |
| NGA | Negotiated Greenhouse Agreement | In English | |
| NGA | National Gallery of Art | In English | → Museums → Arts |
| NGA | National Gallery of Australia (http://nga.gov.au) | In English | → Museums → Arts → Australia |
| NGB | National Guard Bureau | In English | → Military affairs |
| NGC | Next-Generation Controller | In English | |
| NGDC | National Geophysical Data Center (www.ngdc.noaa.gov) | In English | → Data → Geophysics |
| NGF | Nerve Growth Factor | In English | → Hormones → Neurology" |
| NGI | Netherlands Genomics Initiative | In English | → Genetics |
| NGN | Next Generation Networking | In English | → Telecommunications |
| NGO | Non-Governmental Organization = ONGs | Organizações Não Governamentais | In Portuguese = NGO | Nichtregierungsorganisation | In German = ANG | Aozadur Nann-Gouarnamantel | In Breton = ONG | Organisation Non Gouvernementale | In French = NRO | Ne-Registara Organizo | In Esperanto = ONG | Organizzazione non governativa | In Italian = LSM | Lembaga Swadaya Masyarakat | In Indonesian = ONG | Organización non gobernamental | In Galician = GKE | Gobernuz Kanpoko Erakunde | In Basque = ONG | Organización no gubernamental | In Spanish = ΜΚΟ | Μη κυβερνητικές οργανώσεις | In Greek = NNO | Nevládní nezisková organizace | In Czech = ONG | Organització no governamental | In Catalan = ННО | Неурядові неприбуткові організації | In Ukrainian = ONG | Organização não governamental | In Portuguese = NGO | Niet-gouvernementele organisatie | In Dutch = NVO | Nevyriausybinė organizacija | In Lithuanian |
In English | → Organizations and associations |
| NGPA | National Guard Personnel, Army | In English | → Military affairs |
| NGS | NUDET Ground System | In English | |
| NGT | NASA Ground Terminal | In English | → Astronautics → United States |
| NH | New Hampshire | In English | → Geography |
| NH&S | Nuclear Hardening and Survivability | In English | → Nuclear technology |
| NHA | Neighbourhood Housing Assistance | In English | → Accommodation |
| NHAAO | New Hampshire Association of Assessing Official (www.nhaao.org) | In English | → Associations → 332 |
| NHABA | New Hampshire Antiquarian Booksellers Association (www.nhaba.org) | In English | → Associations → Trade → Graphic industries, printing, publishing |
| NHB | NASA Handbook | In English | → Astronautics → United States |
| NHC | National Hurricane Center (www.nhc.noaa.gov) | In English | → Central administration → Meteorology, climatology → Natural disasters |
| NHC | Notebook Hardware Control | In English | → Software → Computer hardware |
| NHC | National Heritage Center | In English | → Civilization, culture, progress |
| NHC | National Humanities Center | In English | → Education |
| NHC | National Heart Centre (www.nhc.com.sg) | In English | → Cardiology |
| NHESS | Natural Hazards and Earth System Sciences | In English | → Serial publications, periodicals → Natural disasters → Earth sciences |
| NHF | National Hemophilia Foundation | In English | → Foundations → Blood and circulatory system → Pathology |
| NHGRI | National Human Genom Research Institute (www.genome.gov) | In English | → Research institutes → Genetics → Biotechnology |
| NHLBI | National Heart, Lung, and Blood Institute (www.nhlbi.nih.gov) | In English | → Research institutes → Blood and circulatory system → Cardiology → Medicine |
| NHM | Natural History Museum | In English | → Museums |
| NHM | Non-Hydrostatic Model | In English | |
| NHTSA | National Highway Traffic Safety Association | In English | → Associations → Accidents, risks, safety → Transport and postal services |
| NHTSA | National Highway Traffic Safety Administration (www.nhtsa.dot.gov) | In English | → Central administration → Accidents, risks, safety → Transport and postal services |
| NHWA | National Highway Administration | In English | → Central administration → Transport and postal services |
| NI | Nickel = Ni | Nickel | In French = NI | Nikkel | In Afrikaans = NI | نيكل | In Arabic = NI | Nikel | In Azerbaijani = NI | Нікель | In Belarusian = NI | Никел | In Bulgarian = NI | নিকেল | In Bengali = NI | Nikl | In Bosnian = NI | Níquel | In Catalan = NI | Nichele | In Corsican = NI | Nikl | In Czech = NI | Никĕль | In Chuvash = NI | Nikkel | In Danish = NI | Nickel | In German = NI | Νικέλιο | In Greek = NI | Nikelo | In Esperanto = NI | Níquel | In Spanish = NI | Nikkel | In Estonian = NI | Nikel | In Basque = NI | نیکل | In Persian = NI | Nikkeli | In Finnish = NI | Nichel | In Friulian = NI | Níquel | In Galician = NI | Nickyl | In Manx = NI | ניקל | In Hebrew = NI | निकेल | In Hindi = NI | Nikal | In Croatian = NI | Nikèl | In Haitian Creole = NI | Nikkel | In Hungarian = NI | Նիկել | In Armenian = NI | Nikel | In Indonesian = NI | Nikelo | In Ido = NI | Nikkel | In Icelandic = NI | Nichel | In Italian = NI | ニッケル | In Japanese = NI | nikle | In Lojban = NI | Nikel | JV = NI | ნიკელი | In Georgian = NI | 니켈 | In Korean = NI | Nîkel | In Kurdish = NI | Niccolum | In Latin = NI | Néckel | In Letzeburgesh = NI | Nikelis | In Lithuanian = NI | Niķelis | In Latvian = NI | Konukōreko | In Māori = NI | Никел | In Macedonian = NI | നിക്കല് | In Malayalam = NI | निकेल | In Marathi = NI | Iztāctepoztli | En Nahuatl = NI | Nickel | In Low German = NI | Nikkel | In Dutch = NI | Nikkel | In Nynorsk = NI | Nikkel | In Norwegian = NI | Niquèl | In Occitan = NI | Nikiel | In Polish = NI | Níquel | In Portuguese = NI | Nikil | In Quechua = NI | Nichel | In Romanian = NI | Никель | In Russian = NI | Nichel | In Sicilian = NI | Nikl | In Serbo-Croatian = NI | Nikel | In Slovak = NI | Nikelj | In Slovenian = NI | Никл | In Serbian = NI | Nickel | In Swedish = NI | Nikeli | In Swahili = NI | நிக்கல் | In Tamil = NI | Никел | In Tajik = NI | นิกเกิล | In Thai = NI | Nikel | In Turkish = NI | Нікель | In Ukrainian = NI | Nikel | In Uzbek = NI | Niken | In Vietnamese = NI | ניקל | In Yiddisch = NI | 镍 | In Chinese |
In English | → Chemistry |
| NIAH | National Institute of Animal Health | In English | → Organizations and associations → Veterinary medicine |
| NIAP | National Institute for Asia and the Pacific | In English | → Area studies |
| NIAS | Nordic Institute of Asian Studies | In English | → Area studies |
| NIAS | National Institute of Advanced Studies | In English | → Mathematics and natural sciences → Applied sciences, technology |
| NIB | Noninterference Basis | In English | |
| NIBB | National Institute for Basic Biology | In English | → Research institutes → Biological sciences |
| NIC | Namibia Investment Centre | In English | → 33972 |
| NiC | NeuroImaging Center | In English | → Diagnostics → Neurology |
| NICAM | Nonhydrostatic ICosahedral Atmospheric Model (www.nicam.jp) | In English | → Meteorology, climatology → Japan |
| NICE | National Institute for Health and Clinical Excellence | In English | → Medicine |
| NICE | Nizhny Novgorod Innovation Center for Energy Saving | In English | → Energy economics |
| NICE | Navstar Interface Control Equipment | In English | |
| NICP | National Inventory Control Point | In English | → Maintenance and logistics |
| NIDDK | National Institute of Diabetes and Digestive and Kidney Diseases | In English | → Research institutes → Physiology → Pathology |
| NIDES | Next-generation Intrusion Detection Expert System | In English | → Software |
| NIDRR | National Institute on Disability and Rehabilitation Research | In English | → Research institutes → Medicine |
| NIDS | Network Intrusion Detection System | In English | → Software → Networks, communication |
| NIDS | Network Interface Data System | In English | → Human-computer interaction → Networks, communication |
| NIDS | Network-based Intrusion Detection System | In English | → Software → Networks, communication |
| NIES | National Institute for Environmental Studies (www.nies.go.jp) | In English | → Research institutes → Threats to the environment → Japan |
| NIFES | National Industrial Fuel Efficiency Service | In English | → Energy economics → Vehicle engineering |
| NIFS | National Institute for Fusion Science | In English | → Research institutes → Nuclear, atomic, and molecular physics → Nuclear technology |
| NIFT | National Institute of Fashion Technology | In English | → Textile industry |
| NIFTE | National Initiative for Telehealth | In English | → Medicine |
| NIFTE | Non-Inertive Feedback Thermofluidic Engine | In English | → Mechanical engineering |
| NIH | National Institutes of Health (www.nih.gov) | In English | → Research institutes → Medicine → Biological sciences |
| NIHU | National Institutes fot the Humanities | In English | → Research institutes |
| NII | National Information Infrastructure | In English | |
| NIJL | National Institute of Japanese Literature | In English | → Literature |
| NILE | New Improvements for Ligno-cellulosic Ethanol | In English | → Biotechnology → Chemical technology |
| NIM | Nuclear Instrumentation Module | In English | → Nuclear technology |
| NIM | Network Installation Manager | In English | → Software |
| NIMBY | Not In My Backyard | In English | |
| NIMH | National Institute of Mental Health | In English | → Neurology |
| NIMP | Nuclear Instruments and Methods in Physics Research | In English | → Serial publications, periodicals → Nuclei → Nuclear technology |
| NIMS | Near Infrared Mapping Spectrometer | In English | → 5434224 |
| NIMS | National Institute for Materials Science (www.nims.go.jp) | In English | → Research institutes → Materials science → Japan |
| NIMS | National Incident Management System | In English | → Management |
| NINO | Netherlands Institute for the Near East | In English | → Area studies |
| NINS | National Institutes of Natural Sciences (www.nins.jp) | In English | → Research institutes → Mathematics and natural sciences → Japan |
| NIOSH | National Institute for Occupationnal Safety and Health | In English | → Accidents, risks, safety → Medicine → Labour, labour economics |
| NIOSH | National Institute for Occupational Safety and Health | In English | → Accidents, risks, safety → Labour, labour economics → Medicine |
| NIP | Network Input Processor | In English | → Computer hardware → Networks, communication |
| NIP | Network Interface Processor | In English | → Computer hardware → Human-computer interaction → Networks, communication |
| NIPC | Nigerian Investment Promotion Commission | In English | → 33972 |
| NIPR | National Institute of Polar Research (www.nipr.ac.jp) | In English | → Research institutes → Earth sciences → Japan |
| NIPR | National Industrial Plant Reserve | In English | |
| NIPS | National Institute for Physiological Sciences | In English | → Research institutes → Physiology |
| NIRA | National Institute for Research Advancement | In English | → Research policy |
| NIRIM | National Integration and Regionalism in Indonesia and Malaysia | In English | → Politics |
| NIRSA | National Intramural Recreational Sports Association | In English | → Associations → Sport, physical exercises |
| NISO | National Information Standards Organization (www.niso.org) | In English | → Organizations and associations → Libraries → Knowledge management |
| NISS | National Integrated Scheduling System | In English | |
| NIST | National Institute for Standardization and Technology (www.nist.gov) | In English | → Standardization → Engineering, technology |
| NIST | National Institute of Standards and Technology (www.nist.gov) | In English | → Standardization → Engineering, technology |
| NISTJ | National Institute of Standards and Technology Journal of Research | In English | → Serial publications, periodicals → Standardization → Engineering, technology |
| NIT | Namgyal Institute of Tibetology | In English | → Language, linguistics, literature → Geography, biography, history |
| NITA | Nevada Interpreters and Translators Association (www.nitaonline.org) | In English | → Associations → Translation |
| NITLE | National Institute for Technology and Liberal Education | In English | → Education → Engineering, technology |
| NITZ | Network Identity Time Zone | In English | → Telecommunications |
| NIU | Network Interface Unit | In English | → Human-computer interaction → Networks, communication |
| NizRe | Nizamiah Observatory Reprints | In English | → Serial publications, periodicals → Astronomy |
| NJCh | New Journal of Chemistry | In English | → Serial publications, periodicals → Physics |
| NJECD | New Japanese-English Character Dictionary | In English | → Dictionaries → Linguistics |
| NJP | Network Job Processing | In English | → Networks, communication |
| NJPh | New Journal of Physics | In English | → Serial publications, periodicals → Physics |
| NKJV | New King James Version | In English | → Christianity |
| NLA | National Leather Association (www.nla-i.com) | In English | → Associations → Leather industry |
| NLAW | Next generation Light Anti-armour Weapon | In English | → Military engineering |
| NLD | Network Logistics Depot | In English | → Maintenance and logistics |
| NLDC | National Library and Documentation Centre | In English | → Documentation |
| NLE | National Library for the Environment | In English | → Libraries → Environmental protection |
| NLG | Nose Landing Gear | In English | → Aeronautics, aircraft |
| NLGD | Nose Landing Gear Door | In English | → Aeronautics, aircraft |
| NLM | Nonlinear Material | In English | |
| NLM | National Library of Medicine (www.nlm.nih.gov) | In English | → Libraries → Medicine |
| NlOpt | Nonlinear Optics | In English | → Serial publications, periodicals → Optics |
| NLP | Natural Language Processing | In English | → Computer-based techniques → Linguistics |
| NLRB | National Labor Relations Board | In English | |
| NLU | Natural Language Understanding | In English | → Artificial intelligence → Computer-based techniques |
| NLU | National-Louis University (www.nl.edu) | In English | → Higher education, universities |
| NLU | National Law University | In English | → Higher education, universities → Law, jurisprudence |
| NLU | National Library of Uganda (www.nlu.go.ug) | In English | → Libraries |
| NMA | National Management Association | In English | → Management → Associations |
| NMAB | National Materials Advisory Board | In English | → Organizations and associations → Materials science |
| NMC | Nursing and Midwifery Council | In English | → Organizations and associations → Medicine |
| NMC | National Meteorological Center | In English | → Meteorology, climatology |
| NMC | National Mastitis Council (www.nmconline.org) | In English | → Organizations and associations → Veterinary medicine → Agricultural sciences |
| NMCC | National Military Command Center | In English | → Military engineering |
| NMCS | National Military Command System | In English | → Military affairs |
| NMD | Nuclear Medicine | In English | → Medicine |
| NMD | National Missile Defence program | In English | → Military affairs → Military engineering |
| NMDA | N-methyl-D-aspartate | In English | → Biochemistry, biophysics |
| NMELRC | National Middle East Language Resource Center | In English | → Libraries → Linguistics |
| NMES | Near and Middle Eastern Studies | In English | → Language, linguistics, literature → Area studies |
| NMF | Network Management Forum | In English | → Organizations and associations → Networks, communication |
| NMI | NASA Management Instruction | In English | → Management → Astronautics → United States |
| NMI | National Maritime Institute | In English | → Marine research, oceanography → 627 → 6295 |
| NMIB | New Materiel Introductory Briefing | In English | |
| NMO | Normal Manual Operation | In English | |
| NMOS | Negative-Type Metal Oxide Semiconductor | In English | → Electronics |
| NMP | National Maintenance Point | In English | → Maintenance and logistics |
| NMR | Nuclear Magnetic Resonance = RMN | Résonance Magnétique Nucléaire | In French = RMN | Ressonància Magnètica Nuclear | In Catalan = RMN | Risonanza Magnetica Nucleare | In Italian = תמ"ג | תהודה מגנטית גרעינית | In Hebrew = ЯМР | Я́дерного магни́тного резона́нса | In Russian = НМР | Нуклеарна магнетна резонанција | In Serbian |
In English | → Medicine → Nuclear, atomic, and molecular physics → Nuclear technology |
| NMRA | National Model Railroad Association | In English | → Associations → Entertainment → Rail transport engineering |
| NMT | Notification Of Master Tool | In English | |
| NMTA | National Metal Trades Association | In English | → Associations → Trade → Metallurgy |
| NMTBA | National Machine Tool Builders' Association | In English | → Associations → Mechanical engineering |
| NMTS | Next Manned Transportation System | In English | → Vehicle engineering |
| NMV | Nitrogen Manual Valve | In English | |
| NMVMA | New Mexico Veterinary Medical Association (www.nmvma.org) | In English | → Associations → Veterinary medicine → Mexico |
| NMWF | New Mexico Women's Foundation | In English | → Foundations → Feminism → Mexico |
| NN | Neural Networks | In English | → Serial publications, periodicals → Computer-based techniques → Neurology |
| NNCS | Nordic Network for Chinese Studies | In English | → Organizations and associations → Area studies → China |
| NNK | Nonnuclear Kill | In English | |
| NNO | National Night Out | In English | |
| NNOA | (The) National Naval Officers Association (www.nnoa.org) | In English | → Associations → 359 |
| NNPT | Nuclear Non-Proliferation Treaty | In English | → International relations → Nuclear technology → Military engineering |
| NNSA | National Nuclear Security Administration | In English | → Central administration → Nuclear technology |
| NNTP | Network News Transport Protocol | In English | → Networks, communication |
| NO | Natural Ontological Attitude | In English | → Philosophy, psychology |
| NOA | Naval Officer's Associations | In English | → Associations → 359 |
| NOA | National Outsourcing Association | In English | → Associations → Telecommunications |
| NOA | Naturally occurring asbestos | In English | |
| NOA | 2-Naphthyloxyacetic Acid | In English | → Biochemistry, biophysics |
| NOAA | National Oceanic and Atmospheric Administration | In English | → Central administration → Marine research, oceanography → Meteorology, climatology |
| NOAC | Naval Officers' Association of Canada (www.noac-national.ca) | In English | → Associations → 359 → Canada |
| NOAM | Neuflize OBC Asset Management | In English | → Finance |
| NOAO | National Optical Astronomy Observatories | In English | → Observatories |
| NOC | Network Operation Control | In English | |
| NOCC | Network Operations Control Center | In English | |
| NOD | Notice Of Discrepancy | In English | |
| NODC | National Oceanographic Data Center (www.nodc.noaa.gov) | In English | → Data → Marine research, oceanography |
| NODE | New Orientations for Democracy in Europe | In English | → Democracy |
| NOES | National Operational Environmental Satellite | In English | → Threats to the environment → Astronautics |
| NOGAPS | Navy Operational Global Prediction Center System | In English | → Meteorology, climatology |
| NOGC | North Oxford Golf Club (www.nogc.co.uk) | In English | → Organizations and associations → Sport, physical exercises → United Kingdom |
| NOGC | National Organization of Girls Club | In English | → Organizations and associations |
| NOHIC | Nizamiah JAPAL Rangapur Observatories Hyderabad India Contributions | In English | → Serial publications, periodicals → Astronomy |
| NoJEF | Norwich Jubilee Esperanto Foundation | In English | → Foundations → Artificial languages (linguistics) |
| NOM | Network Output Multiplexer | In English | → Networks, communication |
| NOMIS | Nuclear Operations and Maintenance Information Service | In English | → Nuclear technology |
| NONESA | Nordic Newsletter for Southeast Asian Studies | In English | → Serial publications, periodicals → Language, linguistics, literature → Geography, biography, history |
| NOOP | National Oceanographic Partnership Program | In English | → Marine research, oceanography |
| NOP | Normal Operating Procedure | In English | |
| NOPAR | Non-OPPL Part Approval Requests | In English | |
| NOPAR | Nonorbiter Parts Authorization Request | In English | → Astronautics |
| NOR | Notice Of Revision | In English | |
| NORAD | North American Aerospace Defense Command | In English | → Military engineering → Aeronautics, aircraft → Astronautics |
| NORAD | North American Air Defense Command | In English | → 358 → Military engineering → Aeronautics, aircraft |
| NORC | National Opinion Research Center (www.norc.org) | In English | → Research institutes → Social sciences → United States |
| NORGES | Network of Offshore Records of Geology and Stratigraphy | In English | → Records management → Earth sciences → Stratigraphy |