| ad alto impiego di manodopera | que necesita mucha mano de obra |
| ad alto livello | de alto nivel |
| ad angolo retto | perpendicularmente |
| Ad autoritatem | Argumentum ad verecundiam |
| ad eccezione di | excepto |
| ad es. | por ejemplo |
| ad esempio | como |
| ad hoc | ad hoc |
| ad honorem | honorario |
| Ad judicium | Argumentum ad populum |
| Ad Kalendas graecas | Ad kalendas graecas |
| Ad maiorem Dei gloriam | Ad maiorem Dei gloriam |
| Ad nauseam | Ad nauseam |
| Ad occhio nudo | A simple vista |
| Ad ogni costi | A toda costa |
| ad ogni costo | todo lo que sea necesario |
| ad ogni modo | sin embargo |
| ad oltranza | ad náuseam |
| Ad-Aware | Ad-Aware |
| Ad-hoc On-demand Distance Vector | AODV |
| Ada | Lenguaje de programación Ada |
| Ada Lovelace | Ada Lovelace |
| Adab | Adab |
| Adachi | Adachi |
| Adad | Ishkur |
| adagiarsi | reclinarse |
| adagio | adagio |
| Adalberto | Adalberto |
| Adalberto Steiner | Adalbert Steiner |
| Adalia | Antalya |
| Adam Adalbert von Neipperg | Adam Adalbert von Neipperg |
| Adam Clayton | Adam Clayton |
| Adam Copeland | Adam Copeland |
| Adam de la Halle | Adam de la Halle |
| Adam Elsheimer | Adam Elsheimer |
| Adam Gottlob Oehlenschlager | Adam Oehlenschläger |
| Adam Jerzy Czartoryski | Adam Jerzy Czartoryski |
| Adam Levine | Adam Levine |
| Adam Małysz | Adam Małysz |
| Adam Michał Darski | Adam Darski |
| Adam Mickiewicz | Adam Mickiewicz |
| Adam Opel | Adam Opel |
| Adam Sandler | Adam Sandler |
| Adam Smith | Adam Smith |
| Adam Weishaupt | Adam Weishaupt |
| adamantino | adamantino |
| Adamantio | Adamantio |
| Adamaoua | Adamawa |
| Adamawa | Adamawa |
| Adamclisi | Adamclisi |
| Adamite | Adamita |
| Adamiti | Adamismo |
| Adamo | Adán |
| Adamo da Brema | Adán de Bremen |
| Adamo ed Eva | Adán y Eva |
| Adamo Filippo de Custine | Adam Philippe de Custine |
| Adams | Adams |
| Adamstown | Adamstown |
| Adamswiller | Adamswiller |
| Adana | Adana |
| Adansonia | Adansonia |
| Adansonia digitata | Adansonia digitata |
| Adapa | Alulim |
| Adapter | Adapter |
| Adar | Adar |
| Adasaurus mongoliensis | Adasaurus |
| ADAT | ADAT |
| adattabile | adaptable |
| adattabilità | adaptabilidad |
| adattamento | conformidad |
