| adumbration | alusion |
| Adunis | Adonis |
| advance | favorecer |
| Advance Australia Fair | Advance Australia Fair |
| Advance fee fraud | Estafa nigeriana |
| Advance health care directive | Testamento vital |
| advance notification | preaviso |
| advance payment | anticipo |
| advanced | avance |
| Advanced Access Content System | Advanced Access Content System |
| Advanced Audio Coding | Advanced Audio Coding |
| Advanced Composition Explorer | Advanced Composition Explorer |
| Advanced Configuration and Power Interface | Advanced Configuration and Power Interface |
| Advanced language | Lenguaje de alto nivel |
| Advanced Linux Sound Architecture | Arquitectura de Sonido Avanzada para Linux |
| Advanced Maryland Automatic Network Disk Archiver | Advanced Maryland Automatic Network Disk Archiver |
| Advanced Micro Devices | Advanced Micro Devices |
| Advanced Mobile Phone System | Sistema Telefónico Móvil Avanzado |
| Advanced Packaging Tool | Advanced Packaging Tool |
| Advanced Photo System | Advanced Photo System |
| Advanced Power Management | APM |
| Advanced Programmable Interrupt Controller | APIC |
| Advanced Systems Format | Advanced Streaming Format |
| Advanced Technology Attachment | Integrated Drive Electronics |
| Advanced Telecommunications Computing Architecture | Advanced Telecommunications Computing Architecture |
| Advanced Video Codec High Definition | AVCHD |
| advancement | mejora |
| advancing | venidero |
| advantage | aprovechar |
| advantageous | provechoso |
| advantageously | ventajosamente |
| advantagious | provechoso |
| advection | advección |
| Advent | adviento |
| Advent calendar | Adviento |
| Adventist Development and Relief Agency | Agencia adventista de desarrollo y recursos asistenciales |
| adventitious | casual |
| adventure | aventura |
| Adventure film | Cine de aventuras |
| Adventure tourism | Turismo de aventura |
| adventurer | temerario |
| adventures | peripecias |
| Adventures of Don Juan | El burlador de Castilla |
| Adventures of Huckleberry Finn | Las aventuras de Huckleberry Finn |
| adventuresome | audaz |
| adventuress | aventurera |
| adventurous | audaz |
| adventurously | arriesgadamente |
| adventurousness | afán aventurero |
| adverb | adverbio |
| adverbial | adverbial |
| adverbial clause | expresión adverbial |
| adverbial participle | gerundio |
| adverbial phrase | locución adverbial |
| adverbialization | adverbialización |
| adverbialize | adverbializar |
