| acupunctuur | acupuntura |
| Acute buik | Abdômen agudo |
| acuut | agudo |
| acuut reuma | febre reumática |
| Acworth | Acworth |
| Acy-Romance | Acy-Romance |
| acyclisch | acíclico |
| AD | AD |
| ad hoc | ad hoc |
| ad infinitum | infinitamente |
| Ad interim | Intervalo |
| ad libitum | à vontade |
| ad nauseam | ad nauseam |
| AD São Caetano | Associação Desportiva São Caetano |
| Ad van den Berg | Adrian Vandenberg |
| Ad-aware | Ad-Aware |
| Ada | Ada |
| Ada Lovelace | Ada Lovelace |
| ADAC | ADAC |
| Adad | Adad |
| Adad-nirari I | Adad-nirari I |
| Adad-nirari II | Adad-nirari II |
| Adad-Nirari III | Adad-nirari III |
| adagio | adágio |
| adagium | aforismo |
| Adair | Adair |
| Adair County | Condado de Adair |
| Adair Village | Adair Village |
| Adairsville | Adairsville |
| Adairville | Adairville |
| Adaja | Rio Adaja |
| Adam | Adão |
| Adam Clayton | Adam Clayton |
| Adam Copeland | Adam Copeland |
| Adam de la Halle | Adam de la Halle |
| Adam en Eva | Adão e Eva |
| Adam Levine | Adam Levine |
| Adam Małysz | Adam Małysz |
| Adam Mickiewicz | Adam Mickiewicz |
| Adam Sandler | Adam Sandler |
| Adam Savage | Adam Savage |
| Adam Smith | Adam Smith |
| Adam van Bremen | Adão de Bremen |
| Adam Weishaupt | Adam Weishaupt |
| adamant | adamante |
| Adamawa | Adamaoua |
| Adamiet | Adamite |
| Adams | Adams |
| Adams Center | Adams Center |
| Adams County | Condado de Adams |
| adamsappel | pomo-de-adão |
| Adamsburg | Adamsburg |
| adamskostuum | como veio ao mundo |
| adamsnaald | mandioca |
| Adamstown | Adamstown |
| Adamsville | Adamsville |
| Adamswiller | Adamswiller |
| Adana | Adana |
| Adapa | Adapa |
| Adapazarı | Adpazarı |
| adapteerbaar | adaptável |
| adapter | adaptador |
| adaptief | adaptável |
| Adaptieve radiatie | Radiação adaptativa |
| Add-on | Add-ons |
| Adda | Rio Adda |
| addendum | apêndice |
| adder | víbora |
| Adders | Viperidae |
| Addieville | Addieville |
| Addington | Addington |
| Addis | Addis |
| Addis Abeba | Adis Abeba |
| Addison | Addison |
| Additie | Adição |
| additief | aditivo |
| additioneel | mais específico |
| Address Resolution Protocol | Address Resolution Protocol |
| Addyston | Addyston |
| adel | aristocracia |
| Adela van Engeland | Adela da Normandia |
| Adela van Hamaland | Adela da Normandia |
| Adela van Mesen | Adela de França |
| adelaar | águia |
| adelaars- | aquilino |
