| ARPANET | ARPANET |
| Arrakis - ökenplaneten | Dune |
| Arrangering | Aranžer |
| Arras | Arras |
| arrende | najem |
| Arrigo Boito | Arrigo Boito |
| arrondering | komasacija |
| Arrows | Arrows |
| Ars nova | Ars nova |
| arsel | prasec |
| arsenik | arzen |
| arsle | rit |
| art | vrsta |
| Art Buchwald | Art Buchwald |
| Arte | Umetnost |
| Artemis | Artemida |
| arter | vrsta |
| Arthur Cayley | Arthur Cayley |
| Arthur Compton | Arthur Holly Compton |
| Arthur Conan Doyle | Arthur Conan Doyle |
| Arthur Eddington | Arthur Stanley Eddington |
| Arthur Honegger | Arthur Honegger |
| Arthur Miller | Arthur Miller |
| Arthur Milne | Edward Arthur Milne |
| Arthur Rimbaud | Arthur Rimbaud |
| Arthur Schopenhauer | Arthur Schopenhauer |
| Arthur Seyss-Inquart | Arthur Seyss-Inquart |
| Arthur Sullivan | Arthur Sullivan |
| Arthur Travers Harris | Arthur Harris |
| Articulata | členjenost |
| Artificiell intelligens | Umetna inteligenca |
| artig | vljuden |
| artikel | članek |
| Artilleri | Artilerija |
| artist | umetnik |
| arton | osemnajst |
| Artrock | Art rock |
| artropoder | členonožci |
| artskydd | varovanje vrst |
| Artur Balder | Artur Balder |
| Artur Boruc | Artur Boruc |
| Arturo Toscanini | Arturo Toscanini |
| artär | arterija |
| Aruba | Aruba |
| Arvaniter | Albanci |
| Arverni | Arverni |
| Arvo Pärt | Arvo Pärt |
| arvode | plačilo |
| arvskatt | davek na nepremičnine |
| arvsmassa | dednina |
| arvsordning | prenos odgovornosti na podrejene |
| Arvsrätt | Dedič |
| Arvsynd | Izvirni greh |
| Arwen | Arwen |
| as | truplo |
| AS Monaco FC | Monako |
| Asaph Hall | Asaph Hall |
| asbest | azbest |
| asbestcement | azbestna malta |
| asbestos | azbestoza |
| ASCII | ASCII |
| ASCII-konst | ASCII-umetnost |
| Ascoli Calcio | Ascoli Calcio |
| Ascoli Piceno | Ascoli Piceno |
| ASEAN | ASEAN |
| ASEAN-staterna | ASEAN |
| asfalt | asfalt |
