| Adalbert af Bremen | Adalbert of Hamburg |
| Adam | Adam |
| Adam af Bremen | Adam of Bremen |
| Adam Copeland | Adam Copeland |
| Adam Gottlob Oehlenschläger | Adam Gottlob Oehlenschläger |
| Adam Ludwig Lewenhaupt | Adam Ludwig Lewenhaupt |
| Adam Mickiewicz | Adam Mickiewicz |
| Adam Sandler | Adam Sandler |
| Adam Smith | Adam Smith |
| Adam Weishaupt | Adam Weishaupt |
| Adamaoua | Adamawa Plateau |
| Adamello | Adamello-Presanella |
| Adams-Onis traktaten | Adams-Onís Treaty |
| adamskostume | birthday suit |
| Adana | Adana |
| Adapter | Adapter |
| Adda | Adda River |
| Addis Ababa | Addis Ababa |
| Addition | Addition |
| Adel | Nobility |
| Adelaide | Adelaide |
| Adelaide af Saxe-Meiningen | Adelaide of Saxe-Meiningen |
| Adelboden | Adelboden |
| Adelskalenderen på skøjter | Adelskalender |
| Aden | Aden |
| Aden Abdullah Osman Daar | Aden Abdullah Osman Daar |
| Adenbugten | Gulf of Aden |
| Adenin | Adenine |
| Adenosindifosfat | Adenosine diphosphate |
| Adenosintrifosfat | Adenosine triphosphate |
| Adenoviridae | Adenoviridae |
| Adept | Adept Manager |
| adfærd | behaviour |
| adfærdskodeks | code of practice |
| adfærdsmønster | behaviour pattern |
| adfærdsvidenskaber | behavioural science |
| adgang til administrative dokumenter | access to administrative documents |
| adgang til kultur | access to culture |
| adgang til oplysninger | access to information |
| adgangskode | password |
| ADHD | Attention-deficit hyperactivity disorder |
| ADI | Dietary Reference Intake |
| Adi Granth | Adi Granth |
| Adiabatisk | Adiabatic process |
| Adiabatisk proces | Adiabatic process |
| Adidas | Adidas |
| Adige | Adige |
| Adirondack | Adirondack Mountains |
| Adjarien | Adzharia |
| adjektiv | adjective |
| ADL | Anti-Defamation League |
| Adlai Stevenson II | Adlai Stevenson |
| adlyde | obey |
| administration | administration |
| administrativ beskæftigelse | administrative occupation |
| administrativ bestemmelse | administrative instructions |
| administrativ grænse | administrative boundary |
| administrativ handling | administrative deed |
| Administrativ inddeling af Letland | Subdivisions of Latvia |
| administrativ kompetence | administrative competence |
| administrativ ordre | administrative fiat |
| administrativ procedure | administrative procedure |
| administrativ sanktion | administrative sanction |
| administrativt organ | administrative body |
| Administrerende direktor | Chief Executive Officer |
| Administrerende direktør | Chairman and managing director |
| Admiral | Vulcan |
| Admiral Franz Ritter von Hipper | Franz von Hipper |
| Admiral Hipper | German cruiser Admiral Hipper |
| Adnan Pachachi | Adnan Pachachi |
| 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 | Adolph |
| Adolf Eichmann | Adolf Eichmann |
| Adolf Frederik af Sverige | Adolf Frederick of Sweden |
| Adolf Hitler | Adolf Hitler |
| Adolf Rickenbacker | Adolph Rickenbacher |
| Adolphe Sax | Adolphe Sax |
| Adolphe-Charles Adam | Adolphe Adam |
| Adonis | Adonis |
| Adonis-slægten | Adonis |
| Adoptere | Adoption |
| Adoption | Adoption |
| Adoptivbarn | Adopted son |
| Adour | Adour |
| Adrastea | Adrastea |
| Adrastos | Adrastus |
| Adrenalin | Epinephrine |
| Adrenokortikotropt hormon | Adrenocorticotropic hormone |
| adressat | addressee |
| adresse | address |
| adressekort | dispatch note |
| Adressere | Address |
| Adrian | Adrian |
| Adrian Belew | Adrian Belew |
| Adrian Petit Coclico | Adrianus Petit Coclico |
| Adrian Smith | Adrian Smith |
| Adrian Willaert | Adrian Willaert |
| Adriana Lima | Adriana Lima |
| Adrianopel | Adrianople |
| Adriaterhavet | Adriatic Sea |
| Adrien Brody | Adrien Brody |
| Adskillige | Number |
| adsorption | adsorption |
| Adult contemporary | Adult contemporary music |
| Advance Australia Fair | Advance Australia Fair |
| advare | warn |
| advarsel | warning |
| Advent | Advent |
| Adventisme | Seventh-day Adventist Church |
| Adventist | Adventist |
| adventskalender | Advent calendar |
| Adventskrans | Advent wreath |
| AdventureQuest | AdventureQuest |
| adverbium | adverb |
| advokat | lawyer |
| Adygejien | Adygea |
| Adzharien | Adzharia |
| Adækvat | Adequat |
| Aegyptus | History of Roman Egypt |
| Aemilianus | Aemilianus |
| Aerob | Aerobic organism |
| aerob behandling | aerobic treatment |
| aerob proces | aerobic process |
| aerobiologi | aerobiology |
| Aerodynamik | Aerodynamics |
| aerodynamisk | aerodynamic |
| aerodynamisk støj | aerodynamic noise |
| Aeroflot | Aeroflot |
| aerofobi | aerophobia |
| aerogram | aerogram |
| aerologi | aerology |
| Aeronautik | Aircraft engineering |
| aerosol | aerosol |
| Aesop | Aesop |
| af | of |
| af Guds nåde | by the Grace of God |
| af og til | sometimes |
| Afar-regionen | Afar Region |
| Afbalanceringsvest | Buoyancy compensator |
| Afbesti | Render null and void |
| afbestilling | cancel |
| Afbetale | Discharge |
| Afbetaling | First instalment |
| afbrænding | burn |
| afbøde | cushion |
| Afdelingsæef | Head of a department |
| Afdrag | First instalment |
| Afdækkertræk | Discovered attack |
| afdækning | covering |
| affald | waste |
| affaldsbaseret brændsel | refuse derived fuel |
| affaldsbortskaffelseslov | waste disposal act |
| affaldsforbrænding | incineration of waste |
| affaldsrensning | pollution abatement waste |
| Affaldsspand | Bin |
| affedtning | degreasing |
| Affenpinscher | Affenpinscher |
| affiks | affix |
| affiksoid | affixoid |
| Affære | Matter |
| afføde | beget |
| Afføring | Feces |
| Afgangseksamen | General Certificate of Educat |
| Afghaner | Afghan |
| Afghanerinde | Afghan |
| Afghanistan | Afghanistan |
| Afghanistans flag | Flag of Afghanistan |
| afghansk mynde | Afghan Hound |
| afgift | levy |
| afgiftning | detoxification |
| afgrænsning | demarcation |
| afgrødebehandling | crop treatment |
| afgrødebeskyttelse | crop protection |
| afgøre | decide |
| afgørende | decisive |
| afhandling | treatise |
| Afhandling om ulighedens oprindelse og grundlæggelse blandt menneskene | Discourse on Inequality |
| afhjælpe | remedy |
