| CITEL | Comisión Interamericana de Telecomunicaciones = CITEL | Commission Interaméricaine des Télécommunications | In French = CITEL | Comissão Interamericana de Telecomunicações | In Portuguese |
In Spanish | → Organizations and associations → Telecommunications |
| CITIC | Centro Andaluz de Innovación y Tecnologías de la Información y las Comunicaciones (www.citic.es) | In Spanish | → Research institutes → Computer science → Telecommunications |
| CITM | Centre de la Imatge i Tecnologia Multimèdia (www.citm.upc.edu) | In Spanish | → Image processing → Cinema, movies |
| CIUMR | Comisión Internacional de Unidades y Medidas Radiológicas = ICRU | International Commission on Radiation Units and Measurements | In English = CIUMR | Commission Internationale des Unités et des Mesures de Radiation | In French = CIUMR | Comissão Internacional de Unidades e Medidas Radiação | In Portuguese |
In Spanish | → Standardization → Nuclear technology |
| CJI | Comité Jurídico Interamericano = IAJC | Inter-American Juridical Committee | In English = CHI | Comité Juridique Interaméricain | In French = CJI | Comitê Jurídico Interamericano | In Portuguese |
In Spanish | → International relations → Law, jurisprudence |
| CLAD | Centro Latinoamericano de Administración para el Desarrollo (www.clad.org.ve) = CLAD | Centre Latino-américain d'Administration pour le Développement | In French = CLAD | Centro Latino-americano de Administração para o Desenvolvimento | In Portuguese |
In Spanish | → Public administration, government → Development |
| CLADES | Centro Latinoamericano de Documentación Económica y Social = CLADES | Centre Latino-américain de Documentation Économique et Sociale | In French = CLADES | Centro Latino-americano de Documentação Econômica e Social | In Portuguese |
In Spanish | → Libraries → Social sciences → Economics |
| CLAEH | Centro Latino-Americano de Economía Humana (www.claeh.org.uy) = CLAEH | Centre Latino-Américain d'Économie Humaine | In French = CLAEH | Centro Latino-americano de Economia Humana | In Portuguese |
In Spanish | → Research institutes → Economics |
| CLAP | Centro Latinoamericano de Perinatología y Desarrollo Humano (www.clap.ops-oms.org) = CLAP | Centro Latino-Americano de Perinatologia e Desenvolvimento Humano | In Portuguese |
In Spanish | → Gynaecology, obstetrics → Pediatry |
| CLARA | Cooperación Latino Americana de Redes Avanzadas | In Spanish | → Networks, communication |
| CMCA | Consejo Monetario Centroamericano | In Spanish | → International economic cooperation |
| CMDS | Cumbre Mundial sobre el Desarrollo Sostenible = WSSD | World Summit on Sustainable Development | In English = SMDD | Sommet Mondial sur le Développement Durable | In French = CMDS | Cúpula Mundial de Desenvolvimento Sustentável | In Portuguese |
In Spanish | → International relations → Nature and society |
| CMI | Centro Misionero Iberoamericano | In Spanish | → Christianity |
| CMNUCC | Convenio Marco de las Naciones Unidas sobre Cambio Climático (http://unfccc.int) = UNFCCC | United Nations Framework Convention on Climate Change | In English = CCNUCC | Convention-Cadre des Nations Unies sur les Changements Climatiques | In French = CQNUMC | Convenção-Quadro das Nações Unidas sobre Mudança de Clima | In Portuguese = UNFCCC | 聯合國氣候變化綱要公約 | In Chinese = КИК | Рамочная конвенция ООН об изменении климата | In Russian = UNFCCC | 気候変動枠組条約 | In Japanese = UNFCCC | 기후 변화에 관한 국제 연합 기본 협약 | In Korean |
In Spanish | → United Nations → Meteorology, climatology |
| CNC | Comité de Negociaciones Comerciales = TNC | Trade Negotiations Committee | In English = CNC | Comité des Négociations Commerciales | In French = CNC | Comitê de Negociações Comerciais | In Portuguese |
In Spanish | → International economic cooperation |
| CNC | Consejo Nacional para la reactivación de la Producción y la Competitividad | In Spanish | → Economics |
| CNCP | Catálogo Nacional de Cualificaciones Profesionales | In Spanish | → Labour, labour economics |
| CNDC | Comisión Nacional de Defensa de la Competencia | In Spanish | → Central administration → Trade |
| CNEA | Comisión Nacional de Energía Atómica (www.cnea.gov.ar) | In Spanish | → Central administration → Nuclear technology |
| CNPL | Centro Nacional de Producción Limpia | In Spanish | |
| CNUAH | Centro de las Naciones Unidas para los Asentamientos Humanos = UNCHS | United Nations Centre for Human Settlements | In English = CNUEH | Centre des Nations Unies pour les Établissements Humains | In French = CNUAH | Centro das Nações Unidas sobre Assentamentos Humanos | In Portuguese |
In Spanish | → United Nations → Accommodation |
| CNUCYD | Conferencia de las Naciones Unidas sobre Comercio y Desarrollo (www.unctad.org) = CNUCED | Conférence des Nations Unies sur le Commerce et le Développement | In French = UNCTAD | United Nations Conference on Trade and Development | In English = ЮНКТАД | Конференция на ООН за търговия и развитие | In Bulgarian = KUNKD | Konferenco de la Unuiĝintaj Nacioj pri Komerco kaj Disvolvado | In Esperanto = UNCTAD | გაეროს ვაჭრობისა და განვითარების კონფერენცია | In Georgian = UNCTAD | การประชุมสหประชาชาติว่าด้วยการค้าและการพัฒนา | In Thai = UNCTAD | 聯合國貿易及發展委員會 | In Chinese = ICTR | International Criminal Tribunal for Rwanda | In English = TPIR | Tribunal Penal Internacional para Ruanda | In Spanish = TPIR | Tribunal Pénal International pour le Rwanda | In French = MTKR | Międzynarodowy Trybunał Karny dla Rwandy | In Polish = MTTR | Medzinárodný Trestný Tribunál pre Rwandu | In Slovak |
In Spanish | → United Nations → Trade → Development |
| CNUDMI | Comisión de las Naciones Unidas para el Derecho Mercantil Internacional (www.uncitral.org) = UNCITRAL | United Nations Commission on International Trade Law | In English = CNUDCI | Commission des Nations Unies pour le Droit Commercial International | In French = ЮНСИТРАЛ | Комиссия Организации Объединенных Наций по праву международной торговли | In Russian = NTU | Natsionalna Telekompaniya Ukraïny | In Ukrainian = НТУ | Національна Телекомпанія України | In Ukrainian |
In Spanish | → United Nations → International law → Commercial law |
| COCEF | Comisión de Cooperación Ecológica Fronteriza = BECC | Border Environment Cooperation Commission | In English = COCEF | Comissão de Cooperação Ecológica Fronteiriça | In Portuguese |
In Spanish | → International relations → Nature and society |
| COI | Comité Olímpico Internacional (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 = ROK | Rahvusvaheline Olümpiakomitee | In Estonian = KOK | Kansainvälinen olympiakomitea | In Finnish = COI | Comité Olímpico Internacional | In Galician = MOO | Međunarodni olimpijski odbor | In Croatian = NOB | Nemzetközi Olimpiai Bizottság | In Hungarian = 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 Spanish | → Organizations and associations → Sport, physical exercises |
| COMEGO | Compañía Mexicana de Gerencia y Operación | In Spanish | → Energy economics → Electrical engineering |
| COMEXI | Consejo de Comercio Exterior e Inversiones | In Spanish | → Organizations and associations → Trade |
| CONAP | Confederación de Nacionalidades Amazónicas del Perú = CONAP | Confederation of Amazonian Nationalities of Peru | In English = CONAP | Confédération des Nationalités Amazoniennes du Pérou | In French = CONAP | Confederação das Nações Amazônicas do Peru | In Portuguese = ICISS | International Commission on Intervention and State Sovereignty | In English = CIISE | Commission Internationale de l'Intervention et de la Souveraineté des États | In French |
In Spanish | → Organizations and associations |
| CONAPRI | Consejo Nacional de Promoción de Inversiones | In Spanish | → 33972 |
| CONATEL | Consejo Nacional de Telecomunicaciones | In Spanish | → Organizations and associations → Telecommunications |
| CONIE | Comisión Nacional de Investigación del Espacio | In Spanish | → Astronomy → Spaceflight engineering, astronautics |
| COPANIT | Comisión Panameña de Normas Industriales y Técnicas | In Spanish | → Standardization |
| COPANT | Comisión Panamericana de Normas Técnicas | In Spanish | → Organizations and associations → Standardization |
| CORPEI | Corporación de Promoción de Exportaciones e Inversiones | In Spanish | → 33972 |
| COTPAL | Comité Técnico Permanente sobre Asuntos Laborales = COTPAL | Comitê Técnico Permanente sobre Assuntos Trabalhistas | In Portuguese |
In Spanish | → Labour, labour economics |
| CPC | Comisión Parlamentaria Conjunta = CPC | Commission Parlementaire Conjointe | In French = CPC | Comissão Parlamentar Comum | In Portuguese |
In Spanish | → Parliaments, representation |
| CPI | Centro de Promoción de Inversiones | In Spanish | → 33972 |
| CRS | Centro de Referencia de Salud | In Spanish | → Medicine |
| CSH | Comisión de Seguridad Hemisférica = CHS | Committee on Hemispheric Security | In English = CSH | Comissão de Segurança Hemisférica | In Portuguese |
In Spanish | → International relations |
| CSI-CSIF | Confederación de Sindicatos Independientes y Sindical de Funcionarios | In Spanish | → Organizations and associations → Labour, labour economics |
| CSIC | Consejo Superior de Investigaciones Científicas | In Spanish | → Organizations and associations → Mathematics and natural sciences |
| CSUE | Centro de Satélites de la Unión Europea (www.eusc.europa.eu) = EUSC | European Union Satellite Centre | In English = CSUE | Centro Satellitare dell'Unione Europea | In Italian |
In Spanish | → European Union → Spaceflight engineering, astronautics |
| CTE | Ciencias de la Tierra y del Espacio | In Spanish | → Serial publications, periodicals → Astronomy → Earth sciences |
| CUDI | Corporación Universitaria para el Desarrollo de Internet | In Spanish | → Computer science → Telecommunications |
| CUE | Consejo de la Unión Europea | In Spanish | → International relations |
| CV-ATOD | Centro Virtual de Información sobre Alcohol, Tabaco y otras Drogas = VC-ATOD | Virtual Clearinghouse on Alcohol, Tobacco, and Other Drugs | In English |
In Spanish | → Networks, communication → Medicine |
| CyT | Ciencia y Tecnología = S&T | Science and Technology | In English = S&T | Sciences et Technologie | In French = C&T | Ciência e Tecnologia | In Portuguese |
In Spanish | → Mathematics and natural sciences → Engineering, technology |
| D | Ácido aspártico = D | Aspartic Acid | In English = D | অ্যাস্পার্টিক অ্যাসিড | In Bengali = D | Kyselina asparagová | In Czech = D | Asparaginsäure | In German = D | Asparta acido | In Esperanto = D | Acide aspartique | In French = D | 아스파르트산 | In Korean = D | Asam aspartat | In Indonesian = D | Acido aspartico | In Italian = D | Àcid aspàrtic | In Catalan = D | חומצה אספרטית | In Hebrew = D | Asparagīnskābe | In Latvian = D | Asparto rūgštis | In Lithuanian = D | Aszparaginsav | In Hungarian = D | Asparaginezuur | In Dutch = D | アスパラギン酸 | In Japanese = D | Kwas asparaginowy | In Polish = D | Ácido aspártico | In Portuguese = D | Аспарагиновая кислота | In Russian = D | Asparagiinihappo | In Finnish = D | Asparaginsyra | In Swedish = D | Aspartat | In Turkish = D | Аспарагінова кислота | In Ukrainian |
In Spanish | → Biochemistry, biophysics |
| DAPO | Desarrollo de los Aspectos Personales para la Ocupación | In Spanish | |
| DCI | Denominación Común Internacional = DCI | Dénomination Commune Internationale | In French = INN | International Nonproprietary Name | In English = DCI | Denominazione Comune Internazionale | In Italian = МНН | Международное непатентованное название | In Russian |
In Spanish | → Pharmacology, toxicology |
| DFA | Disminuidos Físicos de Aragón | In Spanish | → Organizations and associations |
| DGN | Dirección General de Normas | In Spanish | → Standardization |
| DIBA | Diputació de Barcelona | In Spanish | |
| DIIC | Departamento de Ingeniería de la Información y las Comunicaciones | In Spanish | → Computer science → Telecommunications |
| DMID | Diabetes mellitus insulino-dependiente = DID | Diabète insulino-dépendant | In French = IDDM | Insulin-Dependent Diabetes Mellitus | In English = DMID | Diabetes mellitus insulino-dependente | In Portuguese |
In Spanish | → Physiology → Pathology |
| E | Ácido glutámico = E | Glutamic Acid | In English = E | গ্লুটামিক অ্যাসিড | In Bengali = E | Àcid glutàmic | In Catalan = E | Kyselina glutamová | In Czech = E | Glutaminsäure | In German = E | Glutama acido | In Esperanto = E | Acide glutamique | In French = E | 글루탐산 | In Korean = E | Asam glutamat | In Indonesian = E | Acido glutammico | In Italian = E | חומצה גלוטמית | In Hebrew = E | Glutamīnskābe | In Latvian = E | Glutamo rūgštis | In Lithuanian = E | Glutaminezuur | In Dutch = E | Глутаминовая кислота | In Russian = E | Glutamiinihappo | In Finnish = E | Glutaminsyra | In Swedish = E | กลูตาเมต | In Thai = E | Глутамінова кислота | In Ukrainian = E | 穀氨酸 | In Chinese |
In Spanish | → Biochemistry, biophysics |
| EASA | Electricidad Argentina SA | In Spanish | → Electrical engineering |
| EClas | Estudios Clásicos | In Spanish | → Serial publications, periodicals |
| EDE | Elementos Decorativos Eléctricos (www.e-d-e.com) | In Spanish | → Electrical engineering |
| EDE | Europa Democracia Esperanto (www.e-d-e.org) = EDE | Europe Démocratie Espéranto | In French = EDE | Eŭropo Demokratio Esperanto | In Esperanto = EDE | Europa Demokratie Esperanto | In German = EDE | Europe Democracy Esperanto | In English = EDE | Europa Democrazia Esperanto | In Italian = ΕΔΕ | Ευρώπη - Δημοκρατία - Εσπεράντο | In Greek = EDE | Europa Demokracija Esperanto | In Croatian = EDE | Europa Democratie Esperanto | In Dutch = EDE | Európa Demokrácia Eszperantó | In Hungarian = EDE | Europa Demokratija Esperanto | In Lithuanian = EDE | Europa Demokracja Esperanto | In Polish = EDE | Europa Demokrati Esperanto | In Swedish |
In Spanish | → Political parties and movements |
| EDENOR | Empresa Distribuidora y Comercializadora Norte (www.edenor.com.ar) | In Spanish | → Electrical engineering |
| EEO | Escuela de Estudios Orientales | In Spanish | → Higher education, universities → Language, linguistics, literature → Geography, biography, history |
| EEZ | Estación Experimental del Zaídin | In Spanish | |
| eFdV | Entrenamiento Fuerza de ventas | In Spanish | → Trade |
| ENAM | Examen Nacional de Facultades de Medicina | In Spanish | |
| ENDESA | Empresa Nacional De Electricidad, SA | In Spanish | → Electrical engineering |
| ENRE | Ente Nacional Regulador de la Electricidad (www.enre.gov.ar) | In Spanish | → Central administration → Electrical engineering |
| EPN | Escuela Politécnica Nacional | In Spanish | → Specialized or (poly)technical colleges → Engineering, technology |
| EPSA | Empresa Publica Del Suelo De Andalucia | In Spanish | |
| EPSC | Escola Politècnica Superior de Castelldefels (www.epsc.upc.edu) | In Spanish | → Specialized or (poly)technical colleges |
| EPSEM | Escola Politècnica Superior d’Enginyeria de Manresa (www.epsem.upc.edu) | In Spanish | → Specialized or (poly)technical colleges |
| EPSEVG | Escola Politècnica Superior d’Enginyeria de Vilanova i la Geltrú (www.epsevg.upc.edu) | In Spanish | → Specialized or (poly)technical colleges |
| ESOAR | Escuela de Suboficiales de la Armada | In Spanish | → Specialized or (poly)technical colleges → 355 |
| ESPE | Escuela Superior Politécnica del Ejercito | In Spanish | → Specialized or (poly)technical colleges |
| ESPEB | Escola Politècnica Superior d’Edificació de Barcelona (www.epseb.upc.edu) | In Spanish | → Specialized or (poly)technical colleges → Civil engineering → Building |
| ESPOCH | Escuela Superior Politécnica del Chimborazo | In Spanish | → Specialized or (poly)technical colleges → Engineering, technology |
| ESPOL | Escuela Superior Politécnica del Litoral | In Spanish | → Specialized or (poly)technical colleges |
| ESPRL | Escola Superior de Prevenció de Riscos Laborals (www.escuela-prevencion.com) | In Spanish | → Specialized or (poly)technical colleges → Labour, labour economics → Medicine |
| ET | Esclerosis Tuberosa = TS | Tuberous Sclerosis | In English = TS | Tuberøs Sklerose | In Norwegian |
In Spanish | → Neurology |
| ETSAB | Escola Tècnica Superior d’Arquitectura de Barcelona (www.etsab.upc.edu) | In Spanish | → Specialized or (poly)technical colleges → Architecture |
| ETSAV | Escola Tècnica Superior d’Arquitectura del Vallès (www.etsav.upc.edu) | In Spanish | → Specialized or (poly)technical colleges → Architecture |
| ETSECCPB | Escola Tècnica Superior d'Enginyers de Camins, Canals i Ports de Barcelona | In Spanish | → Specialized or (poly)technical colleges |
| ETSEIAT | Escola Tècnica Superior d’Enginyeries Industrial i Aeronàutica de Terrassa (www.etseiat.upc.edu) | In Spanish | → Specialized or (poly)technical colleges → Aeronautics, aircraft |
| ETSEIB | Escola Tècnica Superior d’Enginyeria Industrial de Barcelona (www.etseib.upc.edu) | In Spanish | → Specialized or (poly)technical colleges |
| ETSETB | Escola Tècnica Superior d’Enginyeria de Telecomunicació de Barcelona (www.etsetb.upc.es) | In Spanish | → Specialized or (poly)technical colleges → Telecommunications |
| EUCS | Escuela Universitaria de Ciencias de la Salud | In Spanish | → Higher education, universities → Medicine |
| EUETAB | Escola Universitària d'Enginyeria Tècnica Agrícola de Barcelona | In Spanish | → Specialized or (poly)technical colleges → Agricultural sciences |
| EUETIB | Escola Universitària d'Enginyeria Tècnica Industrial de Barcelona (www.euetib.upc.es) | In Spanish | → Specialized or (poly)technical colleges |
| EUETII | Escola Universitària d'Enginyeria Tècnica Industrial d'Igualada (www.euetii.upc.es) | In Spanish | → Specialized or (poly)technical colleges |
| EUETIT | Escola Universitària d'Enginyeria Tècnica Industrial de Terrassa (http://euetit-ct.upc.es) | In Spanish | → Specialized or (poly)technical colleges |
| EUETTPC | Escola Universitària d'Enginyeria Tècnica en Teixits de Punt de Canet | In Spanish | → Specialized or (poly)technical colleges |
| EUNCET | Escola Universitària Caixa Terrassa (www.euncet.com) | In Spanish | → Higher education, universities |
| EUOTT | Escola Universitària d'Òptica i Optometria de Terrassa (www.euoot.upc.es) | In Spanish | → Specialized or (poly)technical colleges → Optics |
| EUPMT | Escola Universitària Politècnica de Mataró (www.eupmt.cat) | In Spanish | → Specialized or (poly)technical colleges → Higher education, universities |
| F | Flúor = F | Fluor | In French = F | Fluoor | In Afrikaans = F | فلور | In Arabic = F | Flúor | In Asturian = F | Flüor | In Azerbaijani = F | ফ্লুরিন | In Bengali = F | Fluor | In Bosnian = F | Fluor | In Catalan = F | Fluoru | In Corsican = F | Fluor | In Czech = F | Фтор | In Chuvash = F | Fflworin | In Welsh = F | Fluor | In Danish = F | Fluor | In German = F | Φθόριο | In Greek = F | Fluorine | In English = F | Fluoro | In Esperanto = F | Fluor | In Estonian = F | Fluor | In Basque = F | فلوئور | In Persian = F | Fluori | In Finnish = F | Flúor | In Galician = F | פלואור | In Hebrew = F | फ्लोरिन | In Hindi = F | Fluor | In Croatian = F | Fliyò | HT = F | Fluor | In Hungarian = F | Ֆտոր | In Armenian = F | Fluor | In Indonesian = F | Fluoro | In Ido = F | Flúor | In Icelandic = F | Fluoro | In Italian = F | フッ素 | In Japanese = F | li'orkliru | JBO = F | 플루오린 | In Korean = F | Fluor | In Kurdish = F | Fluor | In Latin = F | Fluor | In Letzeburgesh = F | Fluoras | In Lithuanian = F | Fluors | In Latvian = F | Hau kōwhai | In Māori = F | Флуор | In Macedonian = F | ഫ്ലൂറിന് | In Malayalam = F | फ्लोरिन | MR = F | Fluor | In Dutch = F | Fluor | In Nynorsk = F | Fluor | In Norwegian = F | Fluore | NOV = F | Fluor | In Occitan = F | Fluor | In Polish = F | Flúor | In Portuguese = F | Flur | In Quechua = F | Fluor | In Romanian = F | Фтор | In Russian = F | Fluoru | In Sicilian = F | Fluor | In Serbo-Croatian = F | Fluór | In Slovak = F | Fluor | In Slovenian = F | Флуор | In Serbian = F | Fluor | In Swedish = F | Florini | In Swahili = F | ஃவுளூரின் | In Tamil = F | Фтор | In Tajik = F | ฟลูออรีน | In Thai = F | Flor | In Turkish = F | Флуор | In Ukrainian = F | Ftor | In Uzbek = F | Flo | In Vietnamese = F | 氟 | In Chinese |
In Spanish | → Chemistry |
| F | Fenilalanina = F | Phenylalanine | In English = F | فينيلألانين | In Arabic = F | Фенилаланин | In Bulgarian = F | Fenilalanina | In Catalan = F | Fenylalanin | In Czech = F | Fenylalanin | In Danish = F | Phenylalanin | In German = F | Fenilalanino | In Esperanto = F | Phénylalanine | In French = F | 페닐알라닌 | In Korean = F | Fenilalanin | In Croatian = F | Fenilalanin | In Indonesian = F | Fenilalanina | In Italian = F | פנילאלנין | In Hebrew = F | Fenilalanīns | In Latvian = F | Phenylalanin | In Letzeburgesh = F | Fenilalaninas | In Lithuanian = F | Fenilalanin | In Hungarian = F | Fenylalanine | In Dutch = F | フェニルアラニン | In Japanese = F | Fenylalanin | In Norwegian = F | Fenyloalanina | In Polish = F | Fenilalanina | In Portuguese = F | Фенилаланин | In Russian = F | Фенилаланин | In Serbian = F | Fenyylialaniini | In Finnish = F | Fenylalanin | In Swedish = F | Fenilalanin | In Turkish = F | Фенілаланін | In Ukrainian = F | 苯丙氨酸 | In Chinese |
In Spanish | → Biochemistry, biophysics |
| FAEN | Fundación Asturiana de la Energía | In Spanish | → Foundations → Energy economics |
| FASGA | Federación de Asociaciones Sindicales | In Spanish | → Organizations and associations → Labour, labour economics |
| FCC | Fomento de Construcciones y Contratas | In Spanish | → Civil engineering → Building |
| FCyT | Federación de Comunicación y Transporte | In Spanish | → Organizations and associations → Labour, labour economics → Telecommunications → Transport and postal services |
| FE | Federación de Enseñanza | In Spanish | → Organizations and associations → Labour, labour economics |
| FEADER | Fondo Europeo Agrícola de Desarrollo Rural = FEADER | Fonds Européen Agricol pour le Développement Rural | In French = ELFUL | Europæiske Landbrugsfond for Udvikling af Landdistrikterne | In Danish = ELER | Europäischer Landwirtschaftsfonds für die Entwicklung des ländlichen Raums | In German = ΕΓΤΑΑ | Ευρωπαϊκό Γεωργικό Ταμείο Αγροτικής Ανάπτυξης | In Greek = EAFRD | European Agricultural Fund for Rural Development | In English = FEASR | Fondo Europeo Agricolo per lo Sviluppo Rurale | In Italian = ELFPO | Europees Landbouwfonds voor Plattelandsontwikkeling | In Dutch = FEADER | Fundo Europeu Agrícola de Desenvolvimento Rural | In Portuguese = EJFLU | Europeiska jordbruksfonden för landsbygdsutveckling | In Swedish |
In Spanish | → Agricultural sciences |
| FECHIF | Federación Chilena de Instituciones Femeninas | In Spanish | → Organizations and associations → Feminism |
| FECOHT | Federación de Comercio, Hostelería y Turismo | In Spanish | → Organizations and associations → Labour, labour economics → Tourism → Trade |
| FED | Fondo Europeo de Desarrollo | In Spanish | |
| FEDA | Federación Española de Aeróbic y Fitness | In Spanish | → Organizations and associations → Sport, physical exercises |
| FEDA | Federación Española de Ajedrez | In Spanish | → Organizations and associations |
| FEREDE | Federación de Entidades Religiosas Evangélicas de España | In Spanish | → Organizations and associations → Christianity |
| FEXOMA | Federación de Construcción y Madera | In Spanish | → Organizations and associations → Labour, labour economics → Building |
| FGC | Ferrocarriles de la Generalitat de Cataluña | In Spanish | |
| FHUCE | Facultad de Humanidades y Ciencias de la Educación | In Spanish | → Education |
| FIB | Facultat d'Informàtica de Barcelona | In Spanish | → Higher education, universities → Computer science |
| FID | Federación Internacional de Diabetes = IDF | International Diabetes Federation | In English = FID | Fédération Internationale du Diabète | In French |
In Spanish | → Organizations and associations → Pathology |
| FIDA | Fondo Internacional de Desarrollo Agrícola (www.ifad.org) = IFAD | International Fund for Agricultural Development | In English = FIDA | Fonds International de Développement Agricole | In French = FIDA | Fundo Internacional de Desenvolvimento Agrícola | In Portuguese |
In Spanish | → United Nations → Finance → Agricultural sciences |
| FIFA | Federación Internacional de Fútbol Asociado = FIFA | Fédération Internationale de Football Association | In French |
In Spanish | → Organizations and associations → Sport, physical exercises |
| FIMA | Fundación para la Investigación Médica Aplicada | In Spanish | → Foundations → Medicine |
| FIRE | Fundación Instituto de Rehabilitación para Personas con Epilepsia | In Spanish | → Organizations and associations → Neurology |
| FITEQA | Federación de Industrias Textil-Piel, Químicas y Afines | In Spanish | → Organizations and associations → Labour, labour economics → Chemical technology → Textile industry |
| FM | Federación Minerometalúrgica | In Spanish | → Organizations and associations → Labour, labour economics → Metallurgy |
| FME | Facultat de Matemàtiques i Estadística | In Spanish | → Higher education, universities → Mathematics → Statistics |
| FMRU | Federacion Mexicana de Rugby | In Spanish | → Organizations and associations → Football and rugby |
| FNB | Facultat de Nàutica de Barcelona | In Spanish | → Higher education, universities |
| FONDONORMA | Fondo para la Normalización y Certificación de Calidad | In Spanish | → Standardization |
| FPJ | Federación de Estatal Pensionistas y Jubilados | In Spanish | → Organizations and associations → Labour, labour economics |
| FSAP | Federación de Servicios y Administraciones Públicas | In Spanish | → Organizations and associations → Labour, labour economics → Public administration, government |
| FSE | Fondo Social Europeo = ESF | European Social Fund | In English = FSE | Fonds Social Européen | In French = FSE | Fondo Sociale Europeo | In Italian = ESF | Europees Sociaal Fonds | In Dutch = EFS | Europejski Fundusz Społeczny | In Polish = ESF | Europeiska socialfonden | In Swedish |
In Spanish | → Public finance → European Union → Social welfare |
| FTI | Facultat de Traducció id'Interpretació | In Spanish | → Higher education, universities → Language, linguistics, literature |
| FUNDACYT | Fundación para la Ciencia y la Tecnología | In Spanish | → Foundations → Mathematics and natural sciences → Applied sciences, technology |
| G | Glicina = G | Glycine | In English = G | গ্লাইসিন | In Bengali = G | Glicina | In Catalan = G | Glycin | In Czech = G | Glycin | In Danish = G | Glycin | In German = G | Glicino | In Esperanto = G | Glycine | In French = G | 글리신 | In Korean = G | Glicin | In Croatian = G | Glisin | In Indonesian = G | Glicina | In Italian = G | גליצין | In Hebrew = G | Glicīns | In Latvian = G | Glycin | In Letzeburgesh = G | Glicinas | In Lithuanian = G | Glicin | In Hungarian = G | Glycine | In Dutch = G | グリシン | In Japanese = G | Glycin | In Norwegian = G | Glicyna | In Polish = G | Glicina | In Portuguese = G | Глицин | In Russian = G | Глицин | In Serbian = G | Glisin | SU = G | Glysiini | In Finnish = G | Glycin | In Swedish = G | Glisin | In Turkish = G | Гліцин | In Ukrainian = G | 甘氨酸 | In Chinese |
In Spanish | → Biochemistry, biophysics |
| G | Guanina = G | Guanin | In German = G | Guanine | In French = G | Guanino | In Esperanto = G | グアニン | In Japanese = G | גואנין | In Hebrew = G | جوانين | In Arabic = G | Гуанин | In Russian |
In Spanish | → Biochemistry, biophysics |
| GAE | Grupos Armados Españoles | In Spanish | → Organizations and associations → 355 |
| GAL | Grupos Antiterroristas de Liberación | In Spanish | → Organizations and associations → 355 |
| GITEP | Grupo de Intercambio Tecnológico de Explotaciones Porcinas | In Spanish | → Organizations and associations → Agricultural sciences |
| GOAPI | Grupo de Óptica Aplicada y Procesado de Imágenes | In Spanish | → Graphical processing → Image processing → Optics |
| H | Histidina = H | Histidine | In English = H | Histidin | In Bosnian = H | Histidina | In Catalan = H | Histidin | In Czech = H | Histidin | In German = H | Histidino | In Esperanto = H | Histidine | In French = H | 히스티딘 | In Korean = H | Histidin | In Croatian = H | Histidin | In Indonesian = H | Istidina | In Italian = H | היסטידין | In Hebrew = H | Histidīns | In Latvian = H | Histidin | In Letzeburgesh = H | Histidinas | In Lithuanian = H | Hisztidin | LU = H | Histidine | In Dutch = H | ヒスチジン | In Japanese = H | Histidin | In Norwegian = H | Histydyna | In Polish = H | Histidina | In Portuguese = H | Гистидин | In Russian = H | Histidiini | In Finnish = H | Histidin | In Swedish = H | Histidin | In Turkish = H | Гістидин | In Ukrainian = H | 組氨酸 | In Chinese |
In Spanish | → Biochemistry, biophysics |
| H | Hidrógeno = H | Hydrogène | In French = H | Waterstof | In Afrikaans = H | هيدروجين | In Arabic = H | Hidróxenu | In Asturian = H | Hidrogen | In Azerbaijani = H | Wassastoff | BAR = H | Вадарод | In Belarusian = H | Водород | In Bulgarian = H | হাইড্রোজেন | In Bengali = H | Hidrogen | In Breton = H | Vodonik | In Bosnian = H | Hidrogen | In Catalan = H | Idroheno | CEB = H | Idrogenu | In Corsican = H | Vodík | In Czech = H | Водород | In Chuvash = H | Hydrogen | In Welsh = H | Brint | In Danish = H | Wasserstoff | In German = H | Υδρογόνο | In Greek = H | Hydrogen | In English = H | Hidrogeno | In Esperanto = H | Vesinik | In Estonian = H | Hidrogeno | In Basque = H | هیدروژن | In Persian = H | Vety | In Finnish = H | Hydrogen | In Faroese = H | Idrogjen | In Friulian = H | Hidrigin | In Irish = H | Haidreagain | GD = H | Hidróxeno | In Galician = H | હાઈડ્રોજન | GU = H | מימן | In Hebrew = H | हाइड्रोजन | In Hindi = H | Vodik | In Croatian = H | Idwojèn | HT = H | Hidrogén | In Hungarian = H | Ջրածին | In Armenian = H | Hydrogeno | In Interlingua = H | Hidrogen | In Indonesian = H | Hidrogeno | In Ido = H | Vetni | In Icelandic = H | Idrogeno | In Italian = H | 水素 | In Japanese = H | წყალბადი | In Georgian = H | អ៊ីដ្រូសែន | KM = H | ಜಲಜನಕ | KN = H | 수소 | In Korean = H | Hîdrojen | In Kurdish = H | Hydrogenium | In Latin = H | Waasserstoff | In Letzeburgesh = H | Waterstof | LI = H | Idrògen | In Lombard = H | Idrojɛ́ní | In Lingala = H | Vandenilis | In Lithuanian = H | Ūdeņradis | In Latvian = H | Hauwai | In Māori = H | Водород | In Macedonian = H | ഹൈഡ്രജന് | In Malayalam = H | Устөрөгч | In Mongolian = H | हायड्रोजन | MR = H | Hidrogen | In Malay = H | Āyōcoxqui | En Nahuatl = H | Waterstoff | NDS = H | Waterstof | In Dutch = H | Hydrogen | In Nynorsk = H | Hydrogen | In Norwegian = H | Hidrogene | NOV = H | Idrogèn | In Occitan = H | Hiidrojen | PIH = H | Wodór | In Polish = H | Hidrogénio | In Portuguese = H | Yakuchaq | In Quechua = H | Hidrogen | In Romanian = H | Водород | In Russian = H | हाइड्रोजन | In Sanskrit = H | Idrògginu | In Sicilian = H | Vodik | In Serbo-Croatian = H | Vodík | In Slovak = H | Vodik | In Slovenian = H | Hidrogjeni | SQ = H | Водоник | In Serbian = H | Hidrogén | SU = H | Väte | In Swedish = H | Hidrojeni | In Swahili = H | ஹைட்ரஜன் | In Tamil = H | హైడ్రోజన్ | TE = H | Ҳидроген | In Tajik = H | ไฮโดรเจน | In Thai = H | Idroheno | In Tagalog = H | Hidrojen | In Turkish = H | Водень | In Ukrainian = H | آبگر | UR = H | Vodorod | In Uzbek = H | Hiđrô | In Vietnamese = H | Woaterstof | VLS = H | Idrodjinne | In Walloon = H | 氢 | WUU = H | היידראזשן | In Yiddisch = H | 氢 | In Chinese |
In Spanish | → Chemistry |
| He | Helio = He | Helium | In English = He | Hélium | In French = He | Helium | In German = He | Гелій | In Belarusian = He | Хелий | In Bulgarian = He | Heli | In Catalan = He | Helijum | In Czech = He | Eliu | In Corsican = He | হিলিয়াম | In Bengali = He | Heliwm | In Welsh = He | Ήλιο | In Greek = He | Heliumo | In Esperanto = He | هيليوم | In Arabic = He | Heelium | In Estonian = He | هلیوم | In Persian = He | הליום | In Hebrew = He | હીલિયમ | GU = He | Eli | In Friulian = He | Héiliam | In Irish = He | हीलियम | In Hindi = He | Elyòm | HT = He | Հելիում | In Armenian = He | Helín | In Icelandic = He | ヘリウム | In Japanese = He | ჰელიუმი | In Georgian = He | 헬륨 | In Korean = He | Hêlyûm | In Kurdish = He | Haumāmā | In Māori = He | Хелиум | In Macedonian = He | Eliyúmu | In Lingala = He | Éli | In Lombard = He | ഹീലിയം | In Malayalam = He | हेलियम | MR = He | Хелијум | In Serbian = He | Гелий | In Russian = He | Heliu | In Romanian = He | Tōnatiuyoh | En Nahuatl = He | Ilyu | In Quechua = He | ஹீலியம் | In Tamil = He | Гелій | In Ukrainian = He | 氦 | In Chinese = He | Geliy | In Uzbek = He | ฮีเลียม | In Thai |
In Spanish | → Chemistry |
| HN | Hospital Neurológico | In Spanish | → Neurology |
| I | Isoleucina = I | Isoleucine | In English = I | Isoleucina | In Catalan = I | Isoleucin | In Danish = I | Isoleucin | In German = I | Izoleŭcino | In Esperanto = I | Isoleucine | In French = I | 이소류신 | In Korean = I | Izoleucin | In Croatian = I | Isoleusin | In Indonesian = I | Isoleucina | In Italian = I | איזולאוצין | In Hebrew = I | Izoleicīns | In Latvian = I | Isoleucin | In Letzeburgesh = I | Izoleucinas | In Lithuanian = I | Isoleucine | In Dutch = I | イソロイシン | In Japanese = I | Izoleucyna | In Polish = I | Isoleucina | In Portuguese = I | Изолейцин | In Russian = I | Isoleusiini | In Finnish = I | Isoleucin | In Swedish = I | İzolösin | In Turkish = I | Ізолейцин | In Ukrainian = I | 異亮氨酸 | In Chinese |
In Spanish | → Biochemistry, biophysics |
| I+D | Investigación y Desarrollo = R&D | Recherche et développement | In French = F&E | Forschung und Entwicklung | In German = R&D | Research and Development | In English = R&S | Ricerca e Sviluppo | In Italian = P&D | Pesquisa e Desenvolvimento | In Portuguese = O&O | Onderzoek en Ontwikkeling | In Dutch = FoU | Forsøk og Utvikling | In Norwegian |
In Spanish | → Research policy → Engineering, technology |
| IA&A | Ingenieria aeronáutica y astronáutica | In Spanish | → Serial publications, periodicals → Aeronautics, aircraft → Spaceflight engineering, astronautics |
| IAF | Instituto Aragonés de Fomento | In Spanish | |
| IAFE | Instituto de Astronomía y Física del Espacio | In Spanish | → Astronomy |
| ICAITI | Instituto Centroamericano de Investigación y Tecnología | In Spanish | → Research institutes → Research policy → Engineering, technology |
| ICEM | Institut Català d'Estudis Mediterranis | In Spanish | → Area studies |
| ICMAB | Instituto de Ciencia de Materiales de Barcelona | In Spanish | → 620 |
| ICONTEC | Instituto Colombiano de Normas Técnicas y Certificación (www.icontec.org.co) | In Spanish | → Standardization |
| ICP | Instituto de Catálisis y Petroleoquímica | In Spanish | → Chemical technology → 665 |
| IDAE | Instituto para la Diversificación y Ahorro de la Energía | In Spanish | → Energy economics |
| IETCC | Instituto Eduardo Torroja de Ciencias de Construcción | In Spanish | → Civil engineering → Building |
| IFAI | Instituto Federal de Acceso a la Información Pública | In Spanish | |
| IGU | Interfaz Gráfica de Usuario = GUI | Graphical User Interface | In English |
In Spanish | → Human-computer interaction |
| IIDH | Instituto Interamericano de Derechos Humanos (www.iidh.ed.cr) = IIDH | Instituto Interamericano de Direitos Humanos | In Portuguese |
In Spanish | → Fundamental rights |
| ILICOO | Instituto Latinoamericano de Investigaciones Comparadas Oriente-Occidente | In Spanish | → Area studies |
| IMAI | Instituto Mexicano de Auditores Internos | In Spanish | |
| IMPI | Instituto Mexicano de la Propriedad Industrial | In Spanish | → Industrial property → Artistic property |
| INCASOL | Institut Català del Sòl | In Spanish | → Astronomy → Energy economics |
| INDECOPI | Instituto Nacional de Defensa de la Competencia y de la Protección de la Propiedad Intelectual | In Spanish | |
| INEGA | Instituto Enerxético de Galicia | In Spanish | → Energy economics |
| INEN | Instituto Ecuatoriano de Normalización | In Spanish | → Standardization |
| INM | Instituto Nacional de Meteorologia | In Spanish | → Meteorology, climatology |
| INMA | Información y Motivación para el Auto-empleo | In Spanish | → Labour, labour economics |
| INN | Instituto Nacional de Normalización (www.inn.cl) | In Spanish | → Standardization |
| INOCAR | Instituto Oceanográfico de la Armada | In Spanish | → Marine research, oceanography |
| INP | Instituto Nacional de Pesca | In Spanish | → Vehicle engineering |
| INTA | Instituto Nacional de Tecnica Aerospacial | In Spanish | → Astronomy → Spaceflight engineering, astronautics |
| INTECO | Instituto de Normas Técnicas de Costa Rica (www.inteco.or.cr) | In Spanish | → Standardization |
| InTEEC | Innovación Tecnológica Electrónica Estudiantil en Ciencias | In Spanish | → Mathematics and natural sciences → Electronics |
| IOA | Información Orientación y Asesoramiento | In Spanish | |
| IRAM | Instituto Argentino de Racionalización de Materiales (www.iram.com.ar) | In Spanish | → Standardization |
| ITC | Institut Català de Tecnologia | In Spanish | → Engineering, technology |
| ITER | Instituto Tecnológico y de Energías Renovables | In Spanish | → Energy economics |
| ITI | Instituto Tecnológico de Informática (www.iti.upv.es) | In Spanish | → Research institutes → Computer science |
| ITP | Industria de Turbo Propulsores | In Spanish | → Mechanical engineering |
| IURD | Iglesia Universal del Reino de Dios = EURD | Église Universelle du Royaume de Dieu | In French = IURD | Igreja Universal do Reino de Deus | In Portuguese = UCKG | Universal Church of the Kingdom of God | In English |
In Spanish | → Christianity → Modern spiritual movements |
| IVA | Impuesto al Valor Agregado = TVA | Taxe sur la Valeur Ajoutée | In French = BTW | Belasting op Toegevoegde Waarde | In Afrikaans = IVA | Impost sobre el valor afegit | In Catalan = PDV | Porez na dodatu vrijednost | In Bosnian = ДДС | Данъкът върху добавената стойност | In Bulgarian = VAT | Value Added Tax | In English = AVI | Aldonvalora imposto | In Esperanto = ΦΠΑ | Φόρος Προστιθέμενης Αξίας | In Greek = DPH | Daň z přidané hodnoty | In Czech = Moms | Meromsætningsafgift | In Danish = MwSt | Mehrwertsteuer | In German = BTW | Belasting over de Toegevoegde Waarde | In Dutch = MVA | Merverdiavgift | In Norwegian = PVM | Pridėtinės vertės mokestis | In Lithuanian = IVA | Imposta sul Valore Aggiunto | In Italian = VASK | Virðisaukaskattur | In Icelandic = PPN | Pajak Pertambahan Nilai | In Indonesian = Áfa | Általános forgalmi adó | In Hungarian = PDV | Porez na dodanu vrijednost | In Croatian = ALV | Arvonlisävero | In Finnish = מע"מ | מס ערך מוסף | In Hebrew = KDV | Katma Değer Vergisi | In Turkish = VAT | ภาษีมูลค่าเพิ่ม | In Thai = VAT | மதிப்புக் கூட்டு வரி | In Tamil = DPH | Daň z pridanej hodnoty | In Slovak = НДС | Налог на добавленную стоимость | In Russian = TVA | Taxa pe valoarea adăugată | In Romanian = IVA | Imposto sobre o Valor Acrescentado | In Portuguese = VAT | 增值税 | In Chinese |
In Spanish | → Taxes, duties |
| K | Lisina = K | Lysine | In English = K | ليسين | In Arabic = K | লাইসিন | In Bengali = K | Lisina | In Catalan = K | Lysin | In Czech = K | Lysin | In German = K | Lizino | LO = K | Lysine | In French = K | 리신 | In Korean = K | Lizin | In Croatian = K | Lisin | In Indonesian = K | Lisina | In Italian = K | ליזין | In Hebrew = K | Lizīns | In Latvian = K | Lysin | In Letzeburgesh = K | Lizinas | In Lithuanian = K | Lizin | In Hungarian = K | Lysine | In Dutch = K | リシン | In Japanese = K | Lizyna | In Polish = K | Lisina | In Portuguese = K | Лизин | In Russian = K | Lysiini | In Finnish = K | Lizin | In Turkish = K | Лізин | In Ukrainian = K | 赖氨酸 | In Chinese |
In Spanish | → Biochemistry, biophysics |
| L | Leucina = L | Leucine | In English = L | Leucina | In Catalan = L | Leucin | In Danish = L | Leucin | In German = L | Leŭcino | In Esperanto = L | Leucine | In French = L | 류신 | In Korean = L | Leucin | In Croatian = L | Leusin | In Indonesian = L | Leucina | In Italian = L | לאוצין | In Hebrew = L | Leicīns | In Latvian = L | Leucin | In Letzeburgesh = L | Leucinas | In Lithuanian = L | Leucine | In Dutch = L | ロイシン | In Japanese = L | Leucin | In Norwegian = L | Leucyna | In Polish = L | Leucina | In Portuguese = L | Лейцин | In Russian = L | Leusiini | In Finnish = L | Leucin | In Swedish = L | Lösin | In Turkish = L | Лейцин | In Ukrainian = L | 亮氨酸 | In Chinese |
In Spanish | → Biochemistry, biophysics |
| LCE | Liga Colombiana contra la Epilepsia | In Spanish | → Organizations and associations → Neurology |
| LES | Laŭzana Esperanto Societo | In Spanish | → Organizations and associations |
| LEXI | Ley de Comercio Exterior e Inversiones | In Spanish | → Trade |
| Li | Litio = Li | Litium | In Afrikaans = Li | ليثيوم | In Arabic = Li | Litiu | In Asturian = Li | Літый | In Belarusian = Li | Литий | In Bulgarian = Li | লিথিয়াম | In Bengali = Li | Litijum | In Bosnian = Li | Liti | In Catalan = Li | Litiu | In Corsican = Li | Lithium | In Czech = Li | Лити | In Chuvash = Li | Lithiwm | In Welsh = Li | Lithium | In Danish = Li | Lithium | In German = Li | Λίθιο | In Greek = Li | Lithium | In English = Li | Litio | In Esperanto = Li | Liitium | In Estonian = Li | Litio | In Basque = Li | لیتیوم | In Persian = Li | Litium | In Finnish = Li | Liti | In Friulian = Li | Litiam | In Irish = Li | Litio | In Galician = Li | ליתיום | In Hebrew = Li | लिथियम | In Hindi = Li | Litij | In Croatian = Li | Lityòm | HT = Li | Lítium | In Hungarian = Li | Լիթիում | In Armenian = Li | Litium | In Indonesian = Li | Litio | In Ido = Li | Litín | In Icelandic = Li | Litio | In Italian = Li | リチウム | In Japanese = Li | roksodna | JBO = Li | ლითიუმი | In Georgian = Li | 리튬 | In Korean = Li | Lithium | KSH = Li | Lîtyûm | In Kurdish = Li | Lithium | In Latin = Li | Lithium | In Letzeburgesh = Li | Litis | In Lithuanian = Li | Litijs | In Latvian = Li | Литиум | In Macedonian = Li | ലിഥിയം | In Malayalam = Li | Litium | In Malay = Li | Lithium | NDS = Li | Lithium | In Dutch = Li | Litium | In Nynorsk = Li | Litium | In Norwegian = Li | Liti | In Occitan = Li | Lit | In Polish = Li | Lítio | In Portuguese = Li | Lityu | In Quechua = Li | Litiu | In Romanian = Li | Литий | In Russian = Li | लिथियम | In Sanskrit = Li | Litij | In Serbo-Croatian = Li | Lítium | In Slovak = Li | Litij | In Slovenian = Li | Litiumi | SQ = Li | Литијум | In Serbian = Li | Litium | In Swedish = Li | Lithi | In Swahili = Li | லித்தியம் | In Tamil = Li | ลิเทียม | In Thai = Li | Lityum | In Turkish = Li | Літій | In Ukrainian = Li | Litiy | In Uzbek = Li | Liti | In Vietnamese = Li | Litiom | In Walloon = Li | ליטיום | In Yiddisch = Li | 锂 | In Chinese |
In Spanish | → Chemistry |
| LICHE | Liga Chilena contra la Epilepsia (www.ligaepilepsia.cl) | In Spanish | → Organizations and associations → Neurology |
| LPF | Liga de Fútbol Profesional (www.lfp.es) | In Spanish | → Organizations and associations → Football and rugby |
| LUD | Liga Universitaria de Deportes | In Spanish | → Organizations and associations → Higher education, universities → Sport, physical exercises |
| M | Metionina = M | Methionine | In English = M | Metionina | In Catalan = M | Methionin | In German = M | Metionino | In Esperanto = M | Méthionine | In French = M | 메티오닌 | In Korean = M | Metionin | In Indonesian = M | Metionina | In Italian = M | Metionin | In Croatian = M | מתיונין | In Hebrew = M | Metionīns | In Latvian = M | Methionin | In Letzeburgesh = M | Metioninas | In Lithuanian = M | Methionine | In Dutch = M | メチオニン | In Japanese = M | Metionin | In Norwegian = M | Metionina | In Polish = M | Metionina | In Portuguese = M | Метионин | In Russian = M | Метионин | In Serbian = M | Metioniini | In Finnish = M | Metionin | In Swedish = M | Metiyonin | In Turkish = M | Метіонін | In Ukrainian = M | 蛋氨酸 | In Chinese |
In Spanish | → Biochemistry, biophysics |
| MCEP | Movimiento Cooperativo de Escuela Popular | In Spanish | → Organizations and associations → Education |
| MEC | Ministerio de Educación, Cultura y Deporte | In Spanish | → Central administration → Education → Civilization, culture, progress |
| MEJ | Movimiento Eucaristico Juvenil = MEJ | Mouvement Eucharistique des Jeunes | In French |
In Spanish | → Organizations and associations → Christianity |
| MEMCH | Movimiento Pro-Emancipación de las Mujeres de Chile | In Spanish | → Organizations and associations → Feminism |
| MFOA | Mercado de Futuros del Aceite de Oliva (www.mfao.es) | In Spanish | → Food technology |
| MICI | Ministerio de Comercio e Industrias | In Spanish | → Central administration → Industry, industrial policy → Trade |
| MICIP | Ministerio de Comercio Exterior, Industrialización, Pesca y Competitividad | In Spanish | → Central administration → Trade → Industry, industrial policy → Fishing, hunting |
| Mn | Manganeso = Mn | Manganese | In French = Mn | Mangaan | In Estonian = Mn | منجنيز | In Arabic = Mn | Manqan | In Azerbaijani = Mn | Mangan | In German = Mn | Манган | In Bulgarian = Mn | Manganès | In Friulian = Mn | Μαγγάνιο | In Greek = Mn | Mangano | In Esperanto = Mn | منگنز | In Persian = Mn | Manganese | In English = Mn | Mangaan | In Afrikaans = Mn | Mangan | In Bosnian = Mn | Manganès | In Catalan = Mn | Mangan | In Danish |
In Spanish | → Chemistry |
| N | Asparagina = N | Asparagine | In English = N | Asparagina | In Catalan = N | Asparagin | In German = N | Asparagino | In Esperanto = N | Asparagine | In French = N | 아스파라긴 | In Japanese = N | Asparagin | In Indonesian = N | Asparagina | In Italian = N | אספרגין | In Hebrew = N | Asparagīns | In Latvian = N | Asparagin | In Letzeburgesh = N | Asparaginas | In Lithuanian = N | Asparagine | In Dutch = N | アスパラギン | In Japanese = N | Asparagina | In Polish = N | Asparagina | In Portuguese = N | Аспарагин | In Russian = N | Asparagín | In Slovak = N | Аспарагин | In Serbian = N | Asparagiini | In Finnish = N | Asparagin | In Swedish = N | Asparagin | In Turkish = N | Аспарагін | In Ukrainian = N | 天冬酰胺 | In Chinese |
In Spanish | → Biochemistry, biophysics |
| N | Nitrógeno = N | Azote | In French = N | Stikstof | In Afrikaans = N | نيتروجين | In Arabic = N | Nitróxenu | In Asturian = N | Azot | In Azerbaijani = N | Азот | In Belarusian = N | Азот | In Bulgarian = N | নাইট্রোজেন | In Bengali = N | Dušik | In Bosnian = N | Nitrogen | In Catalan = N | Azotu | In Corsican = N | Dusík | In Czech = N | Азот | In Chuvash = N | Nitrogen | In Welsh = N | Kvælstof | In Danish = N | Stickstoff | In German = N | Άζωτο | In Greek = N | Nitrogen | In English = N | Azoto | In Esperanto = N | Lämmastik | In Estonian = N | Nitrogeno | In Basque = N | نیتروژن | In Persian = N | Typpi | In Finnish = N | Azôt | In Friulian = N | Nítrigin | In Irish = N | Nitróxeno | In Galician = N | નાઇટ્રોજન | GU = N | Neetragien | GV = N | חנקן | In Hebrew = N | नाइट्रोजन | In Hindi = N | Dušik | In Croatian = N | Azòt | HT = N | Nitrogén | In Hungarian = N | Ազոտ | In Armenian = N | Nitrogeno | In Interlingua = N | Nitrogen | In Indonesian = N | Nitro | In Ido = N | Nitur | In Icelandic = N | Azoto | In Italian = N | 窒素 | In Japanese = N | trano | JBO = N | აზოტი | In Georgian = N | 질소 | In Korean = N | Stickstoff | KSH = N | Nîtrojen | In Kurdish = N | Nitrogenium | In Latin = N | Stéckstoff | In Letzeburgesh = N | Stikstof | LI = N | Azoti | In Lingala = N | Azotas | In Lithuanian = N | Slāpeklis | In Latvian = N | Hauota | In Māori = N | Азот | In Macedonian = N | നൈട്രജന് | In Malayalam = N | Азот | In Mongolian = N | नायट्रोजन | MR = N | Ehēcatehuiltic | En Nahuatl = N | Stickstoff | NDS = N | Stikstof | In Dutch = N | Nitrogen | In Nynorsk = N | Nitrogen | In Norwegian = N | Nitrogene | NOV = N | Azòt | In Occitan = N | Nitrogen | PAM = N | Azot | In Polish = N | Nitrogénio | In Portuguese = N | Qullpachaq | In Quechua = N | Azot | In Romanian = N | Азот | In Russian = N | Azzotu | In Sicilian = N | Dušik | In Serbo-Croatian = N | Dusík | In Slovak = N | Dušik | In Slovenian = N | Azoti | SQ = N | Азот | In Serbian = N | Kväve | In Swedish = N | Nitrojeni | In Swahili = N | நைட்ரஜன் | In Tamil = N | నత్రజని | TE = N | Азот | In Tajik = N | ไนโตรเจน | In Thai = N | Azot | In Turkish = N | Азот | In Ukrainian = N | Azot | In Uzbek = N | Nitơ | In Vietnamese = N | 氮 | In Chinese |
In Spanish | → Chemistry |
| Na | Sodio = Na | Sodium | In French = Na | Natrium | In Afrikaans = Na | صوديوم | In Arabic = Na | Sodiu | In Asturian = Na | Натрый | In Belarusian = Na | Натрий | In Bulgarian = Na | সোডিয়াম | In Bengali = Na | Natrijum | In Bosnian = Na | Sodi | In Catalan = Na | Sodiu | In Corsican = Na | Sodík | In Czech = Na | Sodiwm | In Welsh = Na | Natrium | In Danish = Na | Natrium | In German = Na | ސޯޑިއަމް | DV = Na | Νάτριο | In Greek = Na | Sodium | In English = Na | Natrio | In Esperanto = Na | Naatrium | In Estonian = Na | Sodio | In Basque = Na | سدیم | In Persian = Na | Natrium | In Finnish = Na | Sodi | In Friulian = Na | Sóidiam | In Irish = Na | Sodio | In Galician = Na | Sodjum | GV = Na | נתרן | In Hebrew = Na | सोडियम | In Hindi = Na | Natrij | In Croatian = Na | Sodyòm | HT = Na | Nátrium | In Hungarian = Na | Նատրիում | In Armenian = Na | Natrium | In Indonesian = Na | Natro | In Ido = Na | Natrín | In Icelandic = Na | Sodio | In Italian = Na | ナトリウム | In Japanese = Na | sodna | JBO = Na | Natrium | JV = Na | ნატრიუმი | In Georgian = Na | ಸೋಡಿಯಮ್ | KN = Na | 나트륨 | In Korean = Na | Natrîyûm | In Kurdish = Na | Natrium | In Latin = Na | Natrium | In Letzeburgesh = Na | Sodu | In Lingala = Na | Natris | In Lithuanian = Na | Nātrijs | In Latvian = Na | Konutai | In Māori = Na | Натриум | In Macedonian = Na | സോഡിയം | In Malayalam = Na | सोडियम | MR = Na | Natrium | NDS = Na | Natrium | In Dutch = Na | Natrium | In Nynorsk = Na | Natrium | In Norwegian = Na | Natrium | NOV = Na | Sôdgium | In Norman = Na | Sòdi | In Occitan = Na | Sód | In Polish = Na | Sódio | In Portuguese = Na | Natriyu | In Quechua = Na | Sodiu | In Romanian = Na | Натрий | In Russian = Na | Sodiu | In Sicilian = Na | Natrij | In Serbo-Croatian = Na | Sodík | In Slovak = Na | Natrij | In Slovenian = Na | Natriumi | SQ = Na | Натријум | In Serbian = Na | Natrium | In Swedish = Na | Natiri | In Swahili = Na | சோடியம் | In Tamil = Na | సోడియమ్ | TE = Na | Натрий | In Tajik = Na | โซเดียม | In Thai = Na | Sodyum | In Turkish = Na | Натрій | In Ukrainian = Na | Natriy | In Uzbek = Na | Natri | In Vietnamese = Na | Sodiom | In Walloon = Na | 钠 | In Chinese |
In Spanish | → Chemistry |
| NEG | Nova Escola Galega | In Spanish | → Education |
| 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 |
| NOA | Norma Ortográfica Andaluza | In Spanish | → Language, linguistics, literature |