| AAA | American Arbitration Association | In English | → Associations → Law, jurisprudence |
| AAA | Alianza Apostólica Anticomunista | In Spanish | → Political parties and movements |
| AAANA | American Academy of Ambulatory Nursing Administration | In English | → Academies → Medicine → Public administration, government |
| AABSS | American Association of Behavioral and Social Sciences | In English | → Organizations and associations → Psychology |
| AAC | Attaché d'Administration Centrale | In French | → Central administration |
| AAC | Apprentissage Anticipé de la Conduite | In French | → Education → Transport and postal services |
| AAC | Austrian Academy Corpus | In English | → Libraries → Higher education, universities |
| AACA | Asian American Civic Association | In English | → Associations → 358 |
| AACA | Army Air Corps Association | In English | → Associations → 359 |
| AACE | American Association for Cancer Education | In English | → Associations → Education → Oncology |
| AACPSM | Actual Average Cost Per Successful Mission | In English | → Prices |
| AADPRT | American Association of Directors of Psychiatric Residency Training | In English | → Associations → Education → Psychiatry |
| AAEMS | Association Amicale des Étudiants en Médecine de Strasbourg | In French | → Organizations and associations → Higher education, universities → Medicine |
| AAF | American Austrian Foundation | In English | → Foundations → International relations |
| AAH | Allocation aux Adultes Handicapés | In French | → Social welfare |
| AAHE | American Association for Health Education | In English | → Associations → Education → Medicine |
| AAIM | American Academy of Insurance Medicine | In English | → Academies → Insurance → Medicine |
| AALCC | Asian-African Legal Consultative Committe | In English | → Organizations and associations → Law, jurisprudence |
| AALCO | Asian-African Legal Consultative Organization | In English | → Organizations and associations → Law, jurisprudence |
| AALL | American Association of Law Libraries (www.aallnet.org) | In English | → Associations → Libraries → Law, jurisprudence |
| AAM | Federal Aviation Administration Office of Aviation Medicine | In English | → Central administration → Medicine → Spaceflight engineering, astronautics |
| AAM | Akademie für Arbeitsmedizin (www.aam.at) | In German | → Academies → Labour, labour economics → Medicine |
| AAMC | Association of American Medical Colleges | In English | → Associations → Higher education, universities → Medicine |
| AAMSG | Asian American Medical Student Group | In English | → Organizations and associations → Higher education, universities → Medicine |
| AAOHN | American Association of Occupational Health Nurses | In English | → Associations → Labour, labour economics → Medicine |
| AAOM | Association of Assessing Officers of Manitoba (www.aaom.mb.ca) | In English | → Associations → 332 |
| AAOPAC | American Association of Orthodontists Political Action Committee | In English | → Associations → Politics → Surgery, orthopaedics, ophthalmology |
| AAP | Administrative Acceptability Procedure | In English | → Quality management → Public administration, government |
| AAP | Agent d'Administration Principal | In French | → Public administration, government |
| AAPHR | American Association of Physicians for Human Rights | In English | → Associations → Fundamental rights → Medicine |
| AAPL | American Academy of Psychiatry and the Law | In English | → Academies → Law, jurisprudence → Psychiatry |
| AARC | Assassination Archives and Research Center (www.aarclibrary.org) | In English | → Research institutes → Criminology |
| AARC | Alliance of Artists and Recording Companies (www.aarcroyalties.com) | In English | → Organizations and associations → Music → Artistic property |
| AARLIN | Australian Academic and Research Library Network | In English | → Research policy → Libraries → Higher education, universities |
| AARP | American Association of Retired Persons | In English | → Associations → Labour, labour economics |
| AAS-CEE | Austrian Academy of Sciences - Central and Eastern European Scholarship | In English | → Education |
| AASP | American Association for Social Psychiatry | In English | → Associations → Sociology → Psychiatry |
| AASP | Associação dos Advogados de São Paulo | In Portuguese | → Associations → Law, jurisprudence |
| AASU | Attaché de l'Administration Scolaire et Universitaire | In French | → Public administration, government → Education |
| AASU | Attaché d'Administration Scolaire et Universitaire | In French | → Public administration, government → Education |
| AASW | Australian Association of Social Workers | In English | → Associations → Social welfare |
| AATA | American Association of Teachers of Arabic | In English | → Associations → Education → Language, linguistics, literature |
| AATF | American Association of Teachers of French (www.frenchteachers.org) | In English | → Associations → Education → Language, linguistics, literature |
| AATG | American Association of Teachers of German (www.aatg.org) | In English | → Associations → Education → Language, linguistics, literature |
| AATI | American Association of Teachers of Italian (www.aati-online.org) | In English | → Associations → Education → Language, linguistics, literature |
| AATK | American Association of Teachers of Korean (www.aatk.org) | In English | → Associations → Education → Language, linguistics, literature |
| AATSEEL | American Association of Teachers of Slavic and Eastern European Languages (www.aatseel.org) | In English | → Associations → Education → Language, linguistics, literature |
| AATSP | American Association of Teachers of Spanish and Portuguese (www.aatsp.org) | In English | → Associations → Education → Language, linguistics, literature |
| AATT | American Association of Teachers of Turkic Languages | In English | → Associations → Education → Language, linguistics, literature |
| AAVMC | American Association of Veterinary Medical Colleges | In English | → Associations → Education → Veterinary medicine |
| AAWP | American Association of Working People | In English | → Associations → Labour, labour economics |
| AB | Akcinė bendrovė = AK | Akcia Kompanio | In Esperanto = AT | Акцыянэрнае таварыства | In Bulgarian = AS | Aktsiaselts | In Estonian = AG | Aktiengesellschaft | In German = DD | Dioničko Društvo | In Croatian = AS | Aksjeselskap | In Norwegian = SpA | Società per Azioni | In Italian = AS | Aktieselskab | In Danish = SA | Spółka Akcyjna | In Polish = SA | Societăţi pe Acţiuni | In Romanian = AB | Aktiebolag | In Swedish = AD | Akcionarsko Društvo | In Serbian = DD | Delniška Družba | In Slovenian = AS | Akciová Spoločnosť | In Slovak = AS | Akciová Společnost | In Czech = AT | Акціонерне товариство | In Ukrainian |
In Lithuanian | → Economics |
| AB | Aktiebolag = AK, AT, AS, AG, DD, SpA, SA, AD (look above) |
In Swedish | → Economics |
| ABA | Austrian Business Agency | In English | → 33972 |
| ABA | American Bar Association | In English | → Associations → Law, jurisprudence |
| ABAPI | Associação Brasileira dos Agentes de Propriedade Industrial | In Portuguese | → Associations → Industrial property |
| ABCS | Associazione Bertoni per la Cooperazione e lo Sviluppo nel Terzo Mondo | In Italian | → Associations → Development |
| ABE | Agence Bruxelloise pour l'Entreprise | In French | → Economics |
| ABECAFE | Associação Brasileira dos Exportadores de Café | In Portuguese | → Associations → Trade → Agricultural sciences |
| ABECITRUS | Associação Brasileira dos Exportadores de Cítricos | In Portuguese | → Associations → Trade → Agricultural sciences |
| ABEF | Associação Brasileira dos Produtores e Exportadores de Frangos | In Portuguese | → Associations → Trade |
| ABF | Associação Brasileira de Franchising | In Portuguese | → Associations → Trade |
| ABHES | Accrediting Bureau of Health Education Schools | In English | → Education → Medicine |
| ABI | Associazione Bancaria Italiana | In Italian | → Associations → Financial markets |
| ABI | Associatie van Binnenlandse Industriëlen | In Dutch | → Associations → Industry, industrial policy |
| ABK | Aozadur-Bed ar C'henwerzh | In Breton | → International relations |
| ABLE | Association for Biology Laboratory Education (www.ableweb.org) | In English | → Associations → Research institutes → Education → Biological sciences |
| ABM | Arbeitsbeschaffungsmaßnahmen | In German | → Labour, labour economics |
| ABM | Associação Brasileira de Municípios | In Portuguese | → Associations → Municipal administration |
| ABMCP | Airborne Military Command Post | In English | → 359 → Aeronautics, aircraft |
| ABNF | Association of Black Nursing Faculty in Higher Education | In English | → Associations → Education → Medicine |
| ABOHN | American Board for Occupational Health Nurses | In English | → Organizations and associations → Medicine → Labour, labour economics |
| ABPS | Association des Banquiers Privés Suisses = VSPB | Vereinigung Schweizerischer Privatbankiers | In German |
In French | → Associations → Banks |
| ABRASCE | Associação Brasileira de Shopping Centers | In Portuguese | → Associations → Trade |
| ABSA | Action à Bon de Souscription d'Action | In French | → 33676 |
| ABU | Aozadur ar Broioù Unanet | In Breton | → International relations |
| ABU | Aozadur ar Broadoù Unanet (www.un.org) = UN | Unuigintaj Nacioj | In Esperanto = ONU | Organisation des Nations Unies | In French = ONU | Organizazión d'as Nazions Unitas | In Aragonese = ААН | Арганіза́цыя Аб'ядна́ных На́цый | In Belarusian = VN | Verenigde Nasies | In Afrikaans = ONU | Organización de les Naciones Uníes | In Asturian = OOH | Организацията на обединените нации | In Bulgarian = ПНО | Пĕрлешнĕ Нацисен Организацийĕ | In Chuvash = FN | Feriene Naasjes | In Frisian = UN | United Nations | In English = NBE | Nazio Batuen Erakundea | In Basque = ONU | Organización das Nacións Unidas | In Occitan = UN | Unuiĝinta Naciaro | In Esperanto = UN | Ujedinjeni Narodi | In Bosnian = CN | Consociatio Nationum | In Latin = FN | Forenede Nationer | In Danish = UN | Unionita Nacioni | In Ido = ONU | Organizzazione delle Nazioni Unite | In Italian = KU | Kenedhlow Unys | In Cornish = ONU | Organització de les Nacions Unides | In Catalan = ΟΗΕ | Οργανισμός Ηνωμένων Εθνών | In Greek = ΗΕ | Ηνωμένα Έθνη | In Greek = ONU | Organización de las Naciones Unidas | In Spanish = VN | Vereinte Nationen | In German = VN | Verenigde Naties | In Dutch = VN | Vereent Natiounen | In Letzeburgesh = ООН | Организация Oбъединённых Hаций | In Russian = ONU | Organisacion des Nacions unies | In Franco-Provençal = ONZ | Organizacja Narodów Zjednoczonych | In Polish = BMT | Birlashgan Millatlar Tashkiloti | In Uzbek = ООН | Організація Об'єднаних Націй | In Ukrainian = BM | Birleşmiş Milletler | In Turkish = LHiQ | Liên Hiệp Quốc | In Vietnamese = OKB | Organizata e Kombeve të Bashkuara | In Albanian = OSN | Organizácia Spojených národov | In Slovak = OZN | Organizacija Združenih Narodov | In Slovenian = УН | Уједињене нације | In Serbian = FN | Förenta nationerna | In Swedish = UM | Umoja wa Mataifa | In Swahili = NU | Nazzioni Uniti | In Sicilian = ONU | Organizaţia Naţiunilor Unite | In Romanian = ONU | Organização das Nações Unidas | In Portuguese = VN | Vereenten Natschonen | In Low German = ST | Sameindu Tjóðir | In Faroese = HN | Huñusqa Nasyunkuna | In Quechua = PBB | Pertubuhan Bangsa-bangsa Bersatu | In Malay = NA | Náisiúin Aontaithe | In Irish = ÜRO | Ühinenud Rahvaste Organisatsioon | In Estonian = SÞ | Sameinuðu þjóðanna | In Icelandic |
In Breton | → International relations → United Nations |
| ABVV | Algemeen Belgisch Vakverbond = FGTB | Fédération Générale du Travail de Belgique | In French |
In Dutch | → Organizations and associations → Labour, labour economics |
| ABW | Agencja Bezpieczeństwa Wewnętrznego (www.abw.gov.pl) | In Polish | → Central administration → Police |
| AC | Akademikernes Centralorganisation | In Danish | → Organizations and associations → Labour, labour economics |
| AC | Administration Centrale | In French | → Central administration |
| ACA | Action et Communication Administratives | In French | → Public administration, government → Specialized or (poly)technical colleges |
| ACAV | Associazione Centro Aiuti Volontari Cooperazione Sviluppo Terzo Mondo | In Italian | → Associations → Development |
| ACBD | Association Canadienne des Bibliothèques de Droit (www.callacbd.ca) = CALL | Canadian Association of Law Libraries | In English |
In French | → Associations → Libraries → Law, jurisprudence |
| ACC | Action et Communication Commerciales | In French | → Economics → Specialized or (poly)technical colleges |
| ACC | Administrative Committee on Coordination = CAC | Comité Administrativo de Coordinación | In Spanish = CAC | Comité Administratif de Coordination | In French = CAC | Comitê Administrativo de Coordenação | In Portuguese |
In English | → United Nations |
| ACC | Acceding and Candidate Countries | In English | → International relations |
| ACCCT | Agence Comptable des Créances Contentieuses du Trésor | In French | → Public administration, government → Accounting |
| ACCE | Association des Conseils en Commerce Électronique | In French | → Organizations and associations → Trade → Telecommunications |
| ACCES | ACCession à l’Énergie et aux Services | In French | → Development → Electrical engineering |
| ACCI | Athens Chamber of Commerce & Industry = ΕΒΕΑ | Εμπορικό και Βιομηχανικό Επιμελητήριο Αθηνών | In Greek |
In English | → Organizations and associations → Trade |
| ACCP | (The) Army Correspondence Course Program (www.atsc.army.mil/accp/) | In English | → Education → Military affairs |
| ACCRI | Associazione di Cooperazione Cristiana Internazionale | In Italian | → Associations → Christianity → Development |
| ACCT | Agence Comptable Centrale du Trésor | In French | → Public administration, government → Accounting |
| ACDI | Agence Canadienne de Développement International = CIDA | Canadian International Development Agency | In English |
In French | → Central administration → Development |
| ACEDLE | Association des Chercheurs Et Didacticiens des Langues Étrangères (http://acedle.u-strasbg.fr) | In French | → Associations → Education → Language, linguistics, literature |
| ACEU | Asociación Colombiana de Estudiantes Universitarios (www.aceucolombia.org) | In Spanish | → Associations → Higher education, universities |
| ACF | Administration for Children and Families | In English | → Public administration, government → Social welfare |
| ACF | Action contre la Faim | In French | → Organizations and associations → Development |
| AcF | Akademie für christliche Führungskräfte | In German | → Academies → Christianity → Economics |
| ACHPR | African Charter on Human and Peoples' Rights | In English | → Fundamental rights |
| ACHPR | African Commission on Human and Peoples' Rights | In English | → Organizations and associations → Fundamental rights |
| ACI | American Competitiveness Initiative | In English | → Industry, industrial policy |
| ACICLA | Associação Comercial, Industrial e Agropecuária de Campo Largo | In Spanish | → Associations → Trade → Agricultural sciences |
| ACIF | Associação Comercial e Industrial de Florianópolis | In Portuguese | → Associations → Industry, industrial policy → Trade |
| ACIF | Associação Comercial e Industrial do Funchal | In Portuguese | → Associations → Industry, industrial policy → Trade |
| ACIF | Associazione Consumatori Istruzione e Formazione | In Italian | → Associations → Education |
| ACL | American Classical League (www.aclclassics.org) | In English | → Organizations and associations |
| ACLVB | Algemene Centrale der Liberale Vakbonden = CGSLB | Centrale Générale des Syndicats Libéraux de Belgique | In French |
In Dutch | → Organizations and associations → Labour, labour economics |
| ACNU | Association Canadienne pour les Nations Unies | In French | → Associations → United Nations |
| ACNUSA | Autorité de Contrôle des Nuisances Aériennes | In French | → Public administration, government → Transport and postal services |
| ACO | Administrative Contracting Officer | In English | → 3474 |
| ACOSS | Agence Centrale des Organismes de Sécurité Sociale | In French | → Insurance |
| ACP | Associação Comercial do Paraná | In Portuguese | → Associations → Trade |
| ACPC | Austrian Centre of Philosophy for Children | In English | → Philosophy, psychology → Education |
| ACPI | Association des Conseils en Propriété Industrielle | In French | → Associations → Industrial property |
| ACPM | Associate Contractor Program Manager | In English | → 3474 |
| ACPO | Associate Contractor Project Office | In English | → 3474 |
| ACPO | Association of Chief Police Officers | In English | → Associations → Public administration, government |
| ACPR | Alianţei Confederaţiilor Patronale din România | In Romanian | → Organizations and associations → Labour, labour economics |
| ACPR | Ariel Center for Policy Research | In English | → Politics |
| ACR | Actual Cost Report | In English | → Prices |
| ACRA | Associazione di Cooperazione Rurale in Africa e America Latina | In Italian | → Associations → Development → Agricultural sciences |
| ACRN | America's Career Resource Network | In English | → Labour, labour economics |
| ACRS | Accelerated Cost Recovery System | In English | → Prices |
| ACS | Andragoški Center Slovenije | In Slovenian | → Education |
| ACSEL | Association pour le Commerce et les Services en Ligne | In French | → Organizations and associations → Trade → Telecommunications |
| ACSIA | Agence Comptable des Services industriels de l'Armement | In French | → Public administration, government → Accounting |
| ACTFL | American Council on the Teaching of Foreign Languages (www.actfl.org) | In English | → Organizations and associations → Education → Language, linguistics, literature |
| ACTIM | Agence pour la Coopération Technique, Industrielle et Économique | In French | → Organizations and associations → Economics |
| ACTR | American Council of Teachers of Russian | In English | → Organizations and associations → Education → Language, linguistics, literature |
| ACU | Australian Catholic University | In English | → Roman catholic church → Higher education, universities |
| ACURIL | Association of Caribbean University, Research & Institutional Libraries (http://acuril.uprrp.edu) | In English | → Associations → Libraries → Higher education, universities |
| ACUS | Attaché de Coopération Universitaire et Scientifique | In French | → Higher education, universities → Mathematics and natural sciences → International relations |
| ACV | Asser Christelijke Voetbalclub | In Dutch | → Organizations and associations → Football and rugby |
| ACV | Algemeen Christelijk Vakverbond = CSC | Confédération des Syndicats Chrétiens | In French |
In Dutch | → Organizations and associations → Labour, labour economics → Christianity |
| ACVR | Automotive Cluster Vienna Region | In English | → Vehicle engineering → 383 |
| ACWP | Actual Cost for Work Performed | In English | → Prices |
| AD | Alternattiva Demokratika | In Maltese | → Political parties and movements |
| AD | Akcionarsko Društvo = AB, AK, AT, AS, AG, DD, SpA, SA (look above) |
In Serbian | → Economics |
| ADA | Armenian Development Agency | In English | → 33972 → International economic cooperation |
| ADA | Austrian Development Agency | In English | → International relations → Development |
| ADAE | Agence de Développement de l'Administration Électronique | In French | → Public administration, government → Computer science → Telecommunications |
| ADAPI | Agence des Droits d'Auteurs et de la Propriété Intellectuelle | In French | → Artistic property |
| ADASEA | Association Départementale pour l'Aménagement des Structures des Exploitations Agricoles | In French | → Associations → Economics |
| ADB | Asian Development Bank = BAD | Banque Asiatique de Développement | In French = AsEB | Asiatische Entwicklungsbank | In German = BDA | Banco de Desenvolvimento da Ásia | In Portuguese = АБР | Азиатский банк развития | In Russian |
In English | → Banks → Development |
| ADB | Agricultural Development Bank | In English | → Banks → Agricultural sciences |
| ADB | African Development Bank = BAD | Banque Africaine de Développement | In French = BAD | Banco Africano de Desenvolvimento | In Portuguese = АБР | Африканский банк развития | In Russian |
In English | → Banks → Development |
| AdBeh | Adaptive Behaviour | In English | → Serial publications, periodicals → Psychology |
| ADC | Andean Development Corporation (www.caf.com) = CAF | Corporación Andina de Fomento | In Spanish = SAD | Société Andine de Développement | In French = CAF | Corporação Andina de Fomento | In Portuguese |
In English | → International relations → Development |
| ADC | Aerospace Defense Command | In English | → 358 → Aeronautics, aircraft → Spaceflight engineering, astronautics |
| ADC | Air Defense Command | In English | → 358 |
| ADCR | Applicable Document Contractual Record | In English | → 3474 |
| ADDE | Agence Départementale de Développement Économique | In French | → Economics → Public administration, government |
| ADEBD | Association des Diplômés de l’École de Bibliothécaires Documentalistes | In French | → Associations → Specialized or (poly)technical colleges → Libraries |
| ADEBT | Agence de Développement Économique de Belfort | In French | → Economics |
| ADEC | Association pour le Développement de l'Enseignement des Communications | In French | → Associations → Education |
| ADEC | Agence de Développement de la Corse | In French | → Public administration, government |
| ADEF | Association Des Exportateurs de Films (www.adef.fr) | In French | → Associations → Trade → Cinema, movies |
| ADEM | ADministration de l'EMploi au Luxembourg | In French | → Public administration, government → Labour, labour economics |
| ADEP | Association pour le Développement de l'Enseignement Privé | In French | → Associations → Education |
| ADEP | Agence pour le Développement de l'Éducation Permanente | In French | → Education |
| ADETEF | Association pour le Développement des Échanges en Technologies Économiques et Financières | In French | → Organizations and associations → Economics → Finance |
| ADETEF | Association pour le Développement des Échanges en Technologie Économique et Financière | In French | → Organizations and associations → Economics → Finance |
| ADF | African Development Fund | In English | → Financial markets → 339996 |
| ADI | Association des Doctorants de l'INRETS | In French | → Associations → Higher education, universities → Vehicle engineering → Transport and postal services |
| ADIAF | Association Départementale Interfédérale pour l'Aide Familiale | In French | → Associations → Social welfare |
| ADIC | Air Defense Intelligence Center | In English | → 358 |
| ADIE | Association pour le Droit à l'Initiative Économique | In French | → Associations → Economics |
| ADIJ | Association pour le Développement de l'Informatique Juridique | In French | → Computer science → Organizations and associations → Law, jurisprudence |
| ADIL | Association Départementale d'Information sur le Logement | In French | → Associations → Accommodation |
| ADIMAC | Association pour le Développement Industriel et économique du Massif central et du Centre | In French | → Associations → Economics |
| ADME | Americans for Democracy in the Middle East | In English | → Organizations and associations → Democracy |
| ADME | Australian Drug Management and Education | In English | → Education → Pharmacology, toxicology |
| ADN | AGF Detailhandel Nederland | In Dutch | → Organizations and associations → Trade |
| ADOSOM | Association pour le Développement des Oeuvres Sociales d'Outre-Mer | In French | → Associations → Social welfare |
| ADP | Action à Dividende Prioritaire | In French | → Finance |
| ADPF | Association pour la Diffusion de la Pensée Française | In French | → Associations → International relations |
| ADQ | Action Démocratique du Québec | In French | → Political parties and movements |
| ADR | Alternativ Demokratesch Reformpartei | In Letzeburgesh | → Political parties and movements |
| ADR | American Depositary Receipts | In English | → Finance |
| ADR | Aerospace and Defense Research | In English | → 358 → Military engineering → Aeronautics, aircraft → Vehicle engineering |
| AdR | Ausschuß der Regionen der Europäischen Union | In German | → Organizations and associations → Regional administration |
| ADRA | Adventist Development and Relief Agency | In English | → Organizations and associations → Christianity → Development |
| ADRAF | Agence de Développement Rural et d'Aménagement Foncier | In French | → Public administration, government |
| ADRC | Agence pour le Développement Régional du Cinéma | In French | → Public administration, government → Cinema, movies |
| ADSEA | Association Départementale de Sauvegarde de l'Enfance et de l'Adolescence | In French | → Associations → Social welfare |
| ADSEA | Association Départementale pour la Sauvegarde de l’Enfant à l’Adulte | In French | → Associations → Social welfare |
| ADSSS | Assoziazione dei Docenti delle Scuole Secondarie Superiori ticinesi | In Italian | → Organizations and associations → Education |
| AE | Attestation d'Études | In French | → Education |
| AE | An tAontas Eorpach (http://europa.eu) = EU | European Union | In English = UE | Union Européenne | In French = UE | Unió Europea | In Catalan = UE | Unaniezh Europa | In Breton = EU | Europäische Union | In German = UE | Unia Europejska | In Polish = EU | Europese Unie | In Afrikaans = UE | Unión Europeya | In Aragonese = EU | Evropská Unie | In Czech = ЕС | Европейският съюз | In Bulgarian = EU | Eùropejskô Ùnijô | In Kashubian = ΕΕ | Ευρωπαϊκή Ένωση | In Greek = EU | Europæiske Union | In Danish = UE | Undeb Ewropeaidd | In Welsh = EU | Eŭropa Unio | In Esperanto = JU | Jeropeeske Uny | In Frisian = EB | Europar Batasuna | In Basque = EU | Europska Unija | In Croatian = UE | Unión Europea | In Spanish = EU | Euroopan unioni | In Finnish = EU | Evropska Unija | In Bosnian = UÛ | Unnion Ûropéenne | In Norman = ES | Europas Sājonga | In Baltic languages = UE | Uniaun Europeia | In Tetum = UE | Unyong Europeo | In Tagalog = EU | Európai Unió | In Hungarian = EU | Europeiska unionen | In Swedish = EU | Europana Uniono | In Ido = UE | Uni Eropa | In Indonesian = ESB | Evrópusambandið | In Icelandic |
In Irish | → International relations → European Union |
| AE | Adjoint d'Enseignement | In French | → Education |
| AEAP | Association d'Enseignement Agricole de Purpan | In French | → Associations → Specialized or (poly)technical colleges → Agricultural sciences |
| AEC | African Economic Community = AHS | Africké hospodářské společenství | In Czech |
In English | → International economic cooperation |
| AEC | Association d'Épargne et de Crédits | In French | → Banks |
| AECC | Asociación Española de Centros Comerciales | In Spanish | → Associations → Trade |
| AECI | Agencia Española de Cooperación Internacional | In Spanish | → Organizations and associations → International relations |
| AECI | Agencia Española de Cooperación International | In Spanish | → International relations → Development |
| AECO | Asociación Española de Consultoras de Outplacement | In Spanish | → Associations → Economics → Consulting |
| AED | Analyse Exploratoire des Données | In French | → Statistics → Mathematics |
|