| analysis | ensayo |
| Analysis of algorithms | Análisis de algoritmos |
| analysis programme | programa de análisis |
| Analysis situs | Topología |
| analyst | analista |
| analytic | analítico |
| Analytic continuation | Extensión analítica |
| Analytic function | Función analítica |
| Analytic geometry | Geometría analítica |
| Analytic language | Lengua analítica |
| Analytic philosophy | Filosofía analítica |
| analytical | analítico |
| analytical chemistry | química analítica |
| analytical equipment | equipo analítico |
| Analytical geometry | Geometría analítica |
| Analytical Marxism | Marxismo analítico |
| analytical method | método analítico |
| Analytical psychology | Psicología analítica |
| analyze | analizar |
| Aname | Tonkawa |
| Anamirta cocculus | Menispermaceae |
| Anammox | Anammox |
| anamnesis | anamnesia |
| Anamorphic format | Letterbox |
| Anamorphic widescreen | Letterbox |
| Anamorphism | Anamorfismo |
| Ananda | Ananda |
| Ananda Coomaraswamy | Ananda Coomaraswamy |
| Ananda Marga | Ananda Marga |
| Anandamide | Anandamida |
| Anandyn Amar | Agdanbuugiyn Amar |
| Anania Shirakatsi | Anania Shirakatsi |
| Ananias | Ananías |
| Ananias of Damascus | Ananías |
| Ananke | Ananké |
| Anann | Anu |
| Anapa | Anapa |
| anapaest | anapesto |
| anapest | anapesto |
| Anaphalis | Anaphalis |
| ANAPROF | Asociación Nacional Pro Fútbol |
| Anapsid | Anapsida |
| Anarcha-feminism | Anarquismo feminista |
| anarchical | anárquico |
| anarchism | anarquismo |
| Anarchism and religion | Anarquismo y religión |
| Anarchism in Spain | Anarquismo en España |
| Anarchism without adjectives | Anarquismo sin adjetivos |
| anarchist | anarquista |
| Anarchist Black Cross | Cruz Negra Anarquista |
| Anarchist communism | Comunismo libertario |
| Anarchist economics | Teoría económica anarquista |
| Anarchist symbolism | Símbolos anarquistas |
| Anarcho-capitalism | Anarco-capitalismo |
| Anarcho-primitivism | Anarquismo primitivista |
| Anarcho-punk | Anarcopunk |
| Anarchopedia | Anarcopedia |
| anarchy | anarquía |
| Anarctica | Antártida |
| Anarky | Anarquía |
| Anas | Anas |
| Anasazisaurus | Anasazisaurus |
| Anasias of Damascus | Ananías |
| Anastacia | Anastacia |
| Anastas Mikoyan | Anastas Mikoyan |
| Anastasia | Anastasia |
| Anastasia Myskina | Anastasia Myskina |
| Anastasia of Sirmium | Anastasia |
| Anastasio Bustamante | Anastasio Bustamante |
| Anastasio Somoza Debayle | Anastasio Somoza Debayle |
| Anastasio Somoza García | Anastasio Somoza García |
| Anastasios Charalambis | Anastasios Charalabis |
| Anastasios II | Anastasio II |
| Anastasios Papoulas | Anastasios Papoulas |
| Anastasius | Anastasia |
| Anastasius Bibliotecarius | Anastasio |
| Anastasius Bibliothecarius | Anastasio |
| Anastasius I | Anastasio I |
| Anatexis | Anatexia |
| anathema | anatema |
| anathematize | anatematizar |
| Anatidae | Anatidae |
| Anatinae | Anatinae |
| Anationalism | Anacionalismo |
| Anatole France | Anatole France |
| Anatoli Boukreev | Anatoli Boukreev |
| Anatolia | Anatolia |
| Anatolian languages | Lenguas anatolias |
| Anatolian leopard | Panthera pardus tulliana |
| Anatoliy Lunacharskiy | Anatoli Vasilevich Lunacharsky |
| Anatoliy Tymoschuk | Anatoliy Tymoschuk |
| Anatoly Chubais | Anatoli Chubais |
| Anatoly Fomenko | Anatoly Timofeevich Fomenko |
| Anatoly Karpov | Anatoli Karpov |
| anatomical | anatómico |
| Anatomical pathology | Anatomía patológica |
| Anatomical position | Posición anatómica |
| Anatomical terms of location | Supinación |
| Anatomical Therapeutic Chemical Classification System | Código ATC |
| anatomist | anatomista |
