| ackumulerad | accumulated |
| ackumuleras | pile up |
| ackumulering | accumulation |
| ackumulering av miljöföroreningar | pollutant accumulation |
| ackurat | accurate |
| ackusativ | accusative |
| Ackusativa språk | Nominative-accusative language |
| Ackusatoriskt system | Adversarial system |
| ackvirera | procure |
| ackvisition | canvassing |
| ackvisitör | canvasser |
| Aclens | Aclens |
| Acme | Acme Corporation |
| Acne Action Jeans | Acne Jeans |
| Acocil | Acocil |
| Acoelomater | Body cavity |
| Acomoclitic | Glabrousness |
| Aconcagua | Aconcagua |
| Acorn | Acorn Computers |
| Acorn Archimedes | Acorn Archimedes |
| Acquarossa | Acquarossa |
| Acre | Acre |
| Acrefloden | Acre River |
| Acrocanthosaurus atokensis | Acrocanthosaurus |
| Acrocephalus orinus | Large-billed Reed-warbler |
| Act of Accord | Act of Accord |
| actinid | actinide |
| actinium | actinium |
| action | action |
| Action Directe | Action directe |
| Action française | Action Française |
| Action Replay | Datel Action Replay |
| actionfilm | action movie |
| Actionscript | ActionScript |
| Actionspel | Action game |
| Actium | Actium |
| Active Server Pages | Active Server Pages |
| Active set-metoden | Active set |
| Actors Studio | Actors Studio |
| Actraiser | ActRaiser |
| Acura | Acura |
| AD | AD |
| ad hoc | ad hoc |
| Ad hominem-argument | Ad hominem |
| ad libitum | ad lib |
| ad nauseam | ad nauseam |
| Ad-Daqahliyya | Dakahlia Governorate |
| Ada | Ada |
| Ada Bojana | Ada Bojana |
| Ada Lovelace | Ada Lovelace |
| ADAC | ADAC |
| Adad | Adad |
| adagio | adagio |
| Adair County | Adair County |
| Adal | Adal Sultanate |
| Adalbert Gyrowetz | Adalbert Gyrowetz |
| Adam | Adam |
| Adam Afzelius | Adam Afzelius |
| Adam av Bremen | Adam of Bremen |
| Adam Clayton | Adam Clayton |
| Adam Darski | Adam Darski |
| Adam de la Halle | Adam de la Halle |
| Adam Elsheimer | Adam Elsheimer |
| Adam Ferguson | Adam Ferguson |
| Adam Heinrich von Steinau | Adam Heinrich von Steinau |
| Adam Johann von Krusenstern | Adam Johann von Krusenstern |
| Adam Laxman | Adam Laxman |
| Adam Levine | Adam Levine |
| Adam Ludwig Lewenhaupt | Adam Ludwig Lewenhaupt |
| Adam Małysz | Adam Małysz |
| Adam Mickiewicz | Adam Mickiewicz |
| Adam Nelson | Adam Nelson |
| Adam och Eva | Adam |
| Adam Oehlenschläger | Adam Gottlob Oehlenschläger |
| Adam Opel | Adam Opel |
| Adam Sandler | Adam Sandler |
| Adam Savage | Adam Savage |
| Adam Smith | Adam Smith |
| Adam Weishaupt | Adam Weishaupt |
| Adam Zagajewski | Adam Zagajewski |
| Adamanthea | Adamanthea |
| Adamantisaurus mezzalirai | Adamantisaurus |
| Adamawa | Adamawa State |
| Adamawa-Ubangispråk | Adamawa-Ubangi languages |
| Adamello | Adamello-Presanella |
| Adamit | Adamite |
| Adams | Adams |
| Adams County | Adams County |
