| Acronym | Sense | Language | Topics |
|---|---|---|---|
| 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 | |
| NICM | Nationaal Informatie Centrum voor Mede-eigenaars (www.nicm.be) = CNIC | Centre National d'Information pour Copropriétaires | In French |
In Dutch | → Organizations and associations → Accommodation |
| 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 |
| NIFO | Neidentigita Fluganta Objekto = OVNI | Objet Volant Non Identifié | In French = OVNI | Objecte Volador No Identificat | In Catalan = НЛО | Неидентифициран летящ обект | In Bulgarian = OVNI | Objeto Volador No Identificado | In Spanish = UFO | Unidentifiziertes Flugobjekt | In German = UFO | Unidentified Flying Object | In English = UFO | Unknown Flying Object | In English = UFO | Uidentificeret flyvende objekt | In Danish = UFO | Unbekend fleanend objekt | In Frisian = עב"מ | עצם בלתי מזוהה | In Hebrew = OVNI | Oggetto Volante Non Identificato | In Italian = NLO | Neidentificēts lidojošs objekts | In Latvian = UFO | Uidentifisert flygende objekt | In Norwegian = UFO | Uidentifisert flygande objekt | In Nynorsk = NOL | Niezidentyfikowany Obiekt Latający | In Polish = OVNI | Objeto Voador Não Identificado | In Portuguese = OZN | Obiect Zburător Neidentificat | In Romanian = НЛО | Неопознанный летающий объект | In Russian = NLO | Neidentifikovani leteći objekat | In Serbo-Croatian |
In Esperanto | → Astronautics |
| 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 | |
| NIIF | Normas Internacionales de Información Financiera = IFRS | International Financial Reporting Standards | In English = МСФО | Международные стандарты финансовой отчётности | In Russian = IFRS | 国际财务报告准则 | In Chinese = ΔΠΧΠ | Διεθνή Πρότυπα Χρηματοοικονομικής Πληροφόρησης | In Greek |
In Spanish | → Accounting |
| NIIF | Normes Internationales d'Information Financière | In French | → Accounting |
| NIJL | National Institute of Japanese Literature | In English | → Literature |
| NIL | Norske interiør-arkitekters og møbeldesigneres landsforening | In Norwegian | → Organizations and associations → Architecture → Norway |
| 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 |
| NINEA | Numéro d'Identification Nationale des Entreprises et Associations | In French | → Central administration → 00628 |
| 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 |
| NIOD | Nederlands Instituut voor Oorlogsdocumentatie (www.niod.nl) | In Dutch | → Organizations and associations → Documentation → Polemology → History → Netherlands |
| NIOO | Nederlands Instituut voor Ecologie | In Dutch | → Research institutes → Ecology → Netherlands |
| 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 |
| NIOZ | Nederlands Instituut voor Onderzoek der Zee | In Dutch | → Research institutes → Earth sciences → Netherlands |
| NIOZ | (Koninklijk) Nederlands Instituut voor Onderzoek der Zee | In Dutch | → Marine research, oceanography → Netherlands |
| 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 |
| NIR | (Belgisch) Nationaal Instituut voor Radio-Omroep | In Dutch | → Telecommunications → Belgium |
| NIRA | National Institute for Research Advancement | In English | → Research policy |
| NIRIM | National Integration and Regionalism in Indonesia and Malaysia | In English | → Politics |
| NIRS | Nahinfrarot-Spektroskopie | In German | → Physics |
| NIRSA | National Intramural Recreational Sports Association | In English | → Associations → Sport, physical exercises |
| NIS | Národného informačného strediska | In Slovak | → Slovakia |
| 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 |
| NIUNA | Napoli, Istituto Universitario Navale, Annali | In Italian | → Serial publications, periodicals → Astronomy |
| NIVO | Na Inspanning Volgt Ontspanning | In Dutch | → Organizations and associations → Sport, physical exercises |
| NiZA | Nederlands Instituut voor Zuidelijk Afrika | In Dutch | → Organizations and associations → Netherlands |
| NizRe | Nizamiah Observatory Reprints | In English | → Serial publications, periodicals → Astronomy |
| NJCh | New Journal of Chemistry | In English | → Serial publications, periodicals → Physics |
| NJE | Norvega Junularo Esperantista | In Esperanto | → Organizations and associations → Artificial languages (linguistics) → Norway |
| NJECD | New Japanese-English Character Dictionary | In English | → Dictionaries → Linguistics |
| NJKA | Neues Jahrbuch für der klassischen Altertum | In German | → Serial publications, periodicals |
| NJMM | Neues Jahrbuch Mineralogie Monatshefte | In German | → Serial publications, periodicals → Mineralogy |
| NJP | Network Job Processing | In English | → Networks, communication |
| NJPh | New Journal of Physics | In English | → Serial publications, periodicals → Physics |
| NJU | Nederlandse Juweliers- en Uurwerkenbranche | In Dutch | → Organizations and associations → Netherlands |
| NKI-AVL | Nederlands Kanker Instituut - Antoni van Leeuwenhoek Ziekenhuis | In Dutch | → Research institutes → Oncology → Netherlands |
| NKJV | New King James Version | In English | → Christianity |
| NKVD | Narodnîi Komissariat Vnutrennih Del = НКВД | Народный комиссариат внутренних дел | In Russian |
In Russian | → Public administration, government |
| NKVV | Nieuwe Krimse Voetbal Vereniging | In Dutch | → Organizations and associations → Football and rugby |
| NL | Christelijk Nationaal Vakverbond | In Dutch | → Organizations and associations → Labour, labour economics → 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 |
| NLC | Norbert Litta Combinatie | In Dutch | → Organizations and associations → Sport, physical exercises |
| 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 |
| NLHT | Norges lærerhøgskole i Trondheim | In Norwegian | → Higher education, universities → Norway |
| NLM | Nonlinear Material | In English | |
| NLM | National Library of Medicine (www.nlm.nih.gov) | In English | → Libraries → Medicine |
| NLO | Neidentificēts lidojošs objekts = NIFO, OVNI, НЛО, UFO, עב"מ, NOL, OZN (look above) |
In Latvian | → Astronautics |
| NLO | Neidentifikovani leteći objekat = NIFO, OVNI, НЛО, UFO, עב"מ, NOL, OZN (look above) |
In Serbo-Croatian | → Astronautics |
| NlOpt | Nonlinear Optics | In English | → Serial publications, periodicals → Optics |
| NLP | Natural Language Processing | In English | → Computer-based techniques → Linguistics |
| NLP | Neuro-Linguïstisch Programmeren = PNL | Programmation Neuro-Linguistique | In French |
In Dutch | → Psychology → Linguistics |
| NLR | Nationaal Lucht- en Ruimtevaartlaboratorium | In Dutch | → Research institutes → Aeronautics, aircraft → Astronautics |
| NLRB | National Labor Relations Board | In English | |
| NLU | Natural Language Understanding | In English | → Artificial intelligence → Computer-based techniques |
| NLU | Nouvelle Librairie Universitaire (www.nlu.fr) | In French | → Libraries → Education |
| NLU | National-Louis University (www.nl.edu) | In English | → Higher education, universities |
| NLU | National Law University | In English | → Higher education, universities → Law, jurisprudence |
| NLU | Niños Latinos Unidos (www.nlu.org) | In Spanish | → Organizations and associations → Education |
| NLU | National Library of Uganda (www.nlu.go.ug) | In English | → Libraries |
| NMA | National Management Association | In English | → Management → Associations |
| NMa | Nederlandse Mededingingsautoriteit (www.nmanet.nl) | In Dutch | → Central administration → Economics → Netherlands |
| NMAB | National Materials Advisory Board | In English | → Organizations and associations → Materials science |
| NMBS | Nationale Maatschappij der Belgische Spoorwegen (www.b-rail.be) = SNCB | Société Nationale des Chemins de fer Belges | In French |
In Dutch | → Rail transport engineering → Transport and postal services → Belgium |
| 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 | Naturwissenchaftlich-Medizinisches Institut | In German | → Research institutes → Biological sciences → Medicine |
| NMI | NASA Management Instruction | In English | → Management → Astronautics → United States |
| NMi | Nederlands Meetinstituut (www.nmi.nl) | In Dutch | → Netherlands |
| NMI | National Maritime Institute | In English | → Marine research, oceanography → 627 → 6295 |
| NMI | Nombre Minimum d’Individus | In French | → Archeology |
| NMIB | New Materiel Introductory Briefing | In English | |
| NMMBC | Neuropathie Motrice Multifocale à Bloc de Conduction | In French | → Neurology |
| NMO | Normal Manual Operation | In English | |
| NMOS | Negative-Type Metal Oxide Semiconductor | In English | → Electronics |
| NMP | National Maintenance Point | In English | → Maintenance and logistics |
| NMPP | Nouvelles Messageries de la Presse Parisienne | In French | → Newspapers, journalism → Graphic industries, printing, publishing → France |
| 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 |
| NMR | Nouveau Mouvement Religieux = NRM | New Religious Movement | In English = NRB | Nieuwe Religieuze Beweging | In Dutch = NRJ | Naujieji religiniai judėjimai | In Lithuanian |
In French | → Modern spiritual movements |
| 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 |
| NN | Nacht und Nebel | In German | → History |
| NNCS | Nordic Network for Chinese Studies | In English | → Organizations and associations → Area studies → China |
| NNI | Nederlands Normalisatie Instituut | In Dutch | → Standardization → Netherlands |
| NNI | Nederlands Normalisatie-Instituut | In Dutch | → Standardization → Netherlands |
| NNI | Numéro National Individuel | In French | |
| NNK | Nonnuclear Kill | In English | |
| NNO | Národného normalizačného orgánu | In Slovak | → Standardization → Slovakia |
| NNO | Nevládní nezisková organizace = ONGs | Organizações Não Governamentais | In Portuguese = NGO | Non-Governmental Organization | In English = 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 = 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 Czech | → Organizations and associations |
| NNO | Numéro de Nomenclature OTAN = NSN | NATO Stock Number | In English |
In French | → Military affairs |
| 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 |
| NÖ | Niederösterreich | In German | → Geography → Austria |
| 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 | Norma Ortográfica Andaluza | In Spanish | → Language, linguistics, literature → Spain |
| 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 |
| NOAD | Nooit Opgeven Altijd Doorzetten | In Dutch | → Organizations and associations → Sport, physical exercises |
| NOAD | Nooit Ophouden Altijd Doorgaan | In Dutch | → Organizations and associations → Sport, physical exercises |
| NOAG | Nachrichten der Gesellschaft für Natur- und Völkerkunde Ostasiens | In German | → Serial publications, periodicals → Ethnology → Area studies |
| NOAM | Neuflize OBC Asset Management | In English | → Finance |
| NOAO | National Optical Astronomy Observatories | In English | → Observatories |
| NOB | Nemzetközi Olimpiai Bizottság (www.olympic.org) = CIO | Comité International Olympique | In French = IOC | International Olympic Committee | In English = МОК | Международен олимпийски комитет | In Bulgarian = MOO | Međunarodni olimpijski odbor | In Bosnian = COI | Comitè Olímpic Internacional | In Catalan = MOV | Mezinárodní olympijský výbor | In Czech = IOK | Internationales Olympisches Komitee | In German = ΔΟΕ | Διεθνής Ολυμπιακή Επιτροπή | In Greek = IOK | Internacia Olimpika Komitato | In Esperanto = COI | Comité Olímpico Internacional | In Spanish = ROK | Rahvusvaheline Olümpiakomitee | In Estonian = KOK | Kansainvälinen olympiakomitea | In Finnish = COI | Comité Olímpico Internacional | In Galician = MOO | Međunarodni olimpijski odbor | In Croatian = TOK | Tarptautinis olimpinis komitetas | In Lithuanian = IOC | Internationaal Olympisch Comité | In Dutch = IOK | (Den) internasjonale olympiske komité | In Norwegian = MKOI | Międzynarodowy Komitet Olimpijski | In Polish = COI | Comité Olímpico Internacional | In Portuguese = МОК | Международный олимпийский комитет | In Russian = MOK | Međunarodni olimpijski komitet | In Serbo-Croatian = MOV | Medzinárodný olympijský výbor | In Slovak = MOK | Mednarodni olimpijski komite | In Slovenian = МОК | Међународни олимпијски комитет | In Serbian = IOK | Internationella Olympiska Kommitté | In Swedish = МОК | Міжнародний олімпійський комітет | In Ukrainian |
In Hungarian | → Organizations and associations → Sport, physical exercises |
| NOC | Network Operation Control | In English | |
| NÖC | Neptün Ötesi Cisim = TNO | Trans-Neptunian Object | In English = OTN | Objet Transneptunien | In French = TNO | Transneptunisches Objekt | In German = TNO | Transneptuna Objekto | In Esperanto = TNO | Transneptunsk Objekt | In Norwegian = ТНО | Транснепту́новый объе́кт | In Russian |
In Turkish | → Interplanetary medium |
| 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 |
| NOFSA | Norsk Forum for Sor-Asia | In Norwegian | → Organizations and associations → Area studies → Norway |
| 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 |
| NOGESO | NOrda Grupo de Esperanto-StudadO | In Esperanto | → Organizations and associations → Artificial languages (linguistics) |
| NÖGKK | Niederösterreichische Gebietskrankenkasse (www.noegkk.at) | In German | → Insurance → Medicine → Austria |
| NÖGUS | Niederösterreichischer Gesundheits- und Sozialfonds (www.noegus.at) | In German | → Medicine → Social welfare → Austria |
| 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) |
| NOK | Nijemirdum Oudemirdum Kombinatie | In Dutch | → Organizations and associations → Sport, physical exercises |
| NOL | Niezidentyfikowany Obiekt Latający = NIFO, OVNI, НЛО, UFO, עב"מ, NLO, OZN (look above) |
In Polish | → Astronautics |
| NOM | Network Output Multiplexer | In English | → Networks, communication |
| NOMIS | Nuclear Operations and Maintenance Information Service | In English | → Nuclear technology |
| NÖN | Niederösterreichische Nachrichten (www.noen.at) | In German | → Newspapers, journalism → Austria |