| accent | accent |
| Accenttegn | Diacritique |
| acceptabel daglig dosis | dose journalière admissible |
| acceptabelt risikoniveau | niveau de risque acceptable |
| Accipitridae | Accipitridae |
| Accra | Accra |
| Ace of Base | Ace of Base |
| Acer | Acer Incorporated |
| Acesulfam-kalium | Acésulfame potassium |
| Acetone | Acétone |
| Acetylcystein | Acétylcystéine |
| Acetylen | Acétylène |
| Achaea | Achaïe |
| Achaier | Achéens |
| Achille Lauro | Achille Lauro |
| Achilles | Achille |
| Achilleus | Achille |
| Achmed Sukarno | Soekarno |
| Achæmenide-dynastiet | Achéménides |
| Acid Drinkers | Acid Drinkers |
| Acireale | Acireale |
| Aconcagua | Aconcagua |
| Acorn RISC Machine | Processeur ARM |
| Acre | Acre |
| Acrotomofili | Acrotomophilie |
| Acta Eruditorum | Acta Eruditorum |
| Actinid | Actinide |
| actinider | actinide |
| actinium | actinium |
| Action Directe | Action directe |
| Actium | Actium |
| Active Server Pages | Active Server Pages |
| Activity-based costing | Activity-based costing |
| Acton | Acton |
| ad hoc | ad hoc |
| Ad nauseam | Argumentum ad nauseam |
| Ada | Ada |
| Ada Lovelace | Ada Lovelace |
| Adad | Adad |
| Adam | Adam |
| Adam af Bremen | Adam de Brême |
| Adam Copeland | Adam Copeland |
| Adam Mickiewicz | Adam Mickiewicz |
| Adam Sandler | Adam Sandler |
| Adam Smith | Adam Smith |
| Adam Weishaupt | Adam Weishaupt |
| Adamaoua | Adamaoua |
| Adamello | Adamello-Presanella |
| adamskostume | tenue d’Adam |
| adamsæble | pomme d'Adam |
| Adana | Adana |
| Adda | Adda |
| addere | additionner |
| addict | dépendant |
| Addis Ababa | Addis-Abeba |
| Addition | Addition |
| Additionskredsløb | Additionneur |
| Address resolution protocol | Address Resolution Protocol |
| Adel | Noblesse |
| Adelaide | Adélaïde |
| Adelaide af Saxe-Meiningen | Adélaïde de Saxe-Meiningen |
| Adelboden | Adelboden |
| Adeliepingvin | Manchot Adélie |
| Aden | Aden |
| Aden Abdullah Osman Daar | Aden Abdullah Osman Daar |
| Adenbugten | Golfe d'Aden |
| Adenin | Adénine |
| Adenosindifosfat | Adénosine diphosphate |
| Adenosintrifosfat | Adénosine triphosphate |
| Adenoviridae | Adenoviridae |
| Adept | Adept |
| adfærd | comportement |
| adfærdskodeks | code de mise en pratique |
| adfærdsmønster | modèle de comportement |
| adfærdsvidenskaber | sciences du comportement |
| adgang til administrative dokumenter | accès aux documents administratifs |
| adgang til kultur | accès à la culture |
| adgang til oplysninger | accès à l'information |
| adgangskode | mot de passe |
| ADH | Vasopressine |
| ADI | Adi |
| Adiabatisk | Adiabaticité |
| Adiabatisk proces | Adiabaticité |
| Adidas | Adidas |
| Adige | Adige |
| Adirondack | Adirondacks |
| Adjarien | Adjarie |
| adjektiv | adjectif |
| ADL | ADL |
| Adlai Stevenson II | Adlai Stevenson |
| adlyde | obéir |
| administration | administration |
| administrativ beskæftigelse | profession administrative |
| administrativ bestemmelse | instruction administrative |
| administrativ grænse | limite administrative |
| administrativ handling | acte administratif |
| administrativ kompetence | compétence administrative |
| administrativ ordre | autorisation administrative |
| administrativ procedure | procédure administrative |
| administrativ sanktion | sanction administrative |
| administrativt organ | code administratif |
| administrator | administrateur |
| Administrerende direktor | Chief executive officer |
| Administrerende direktør | Chief executive officer |
| Admiral | Amiral |
| Admiral Franz Ritter von Hipper | Franz von Hipper |
| ADO | ActiveX Data Objects |
| Adobe Flash | Adobe Flash |
| Adobe InDesign | Adobe InDesign |
| Adobe PageMaker | Adobe PageMaker |
| Adobe Photoshop | Adobe Photoshop |
| Adobe Systems | Adobe Systems |
| Adolescens | Adolescence |
| Adolf | Adolphe |
| Adolf af Slesvig-Holsten-Gottorp | Grand-duc Adolphe de Luxembourg |
| Adolf Eichmann | Adolf Eichmann |
| Adolf Frederik af Sverige | Adolphe Frédéric de Suède |
