| arbetstillfälle | freie Stelle |
| arbetstillstånd | Arbeitserlaubnis |
| arbetsträl | Arbeitspferd |
| arbetsvagn | Bauwagen |
| arbetsvecka | Arbeitswoche |
| arbetsverktyg | Arbeitsgerät |
| Arbetsvärdeteorin | Arbeitswerttheorie |
| Arbil | Arbil |
| arbitrage | Arbitrage |
| arbiträr | willkürlich |
| Arboga kommun | Arboga |
| Arbois | Arbois |
| arboretum | Arboretum |
| Arborist | Baumpfleger |
| Arc-et-Senans | Arc-et-Senans |
| Arca Caesarea | Arqa |
| Arcade Fire | Arcade Fire |
| Arcadius | Arcadius |
| Arcangelo Corelli | Arcangelo Corelli |
| Arcelor Mittal | Arcelor Mittal |
| Arcelor-Mittal | Mittal Steel Company |
| Arch | Arch |
| Arch Linux | Arch Linux |
| Archaeopteryx | Archaeopteryx |
| Archangaj | Archangai-Aimag |
| Archangelsk | Archangelsk |
| Archangelsk oblast | Oblast Archangelsk |
| Arche | Arche |
| Archelaos | Herodes Archelaos |
| Archilochos | Archilochos |
| Archipielago de los Chonos | Chonos-Archipel |
| Archlord | Archlord |
| Archytas | Archytas von Tarent |
| Arconciel | Arconciel FR |
| arcosh | arcosh |
| arcoth | arcoth |
| arctanh | arctanh |
| Arctodus simus | Kurznasenbär |
| Arcturus | Arktur |
| Arcus tangens | Arkustangens und Arkuskotangens |
| Arda | Arda |
| Ardabil | Ardabil |
| Ardahan | Ardahan |
| Ardalan Shekarabi | Ardalan |
| Arden | Arden |
| Ardenner | Ardenner |
| Ardennerna | Ardennen |
| Ardenneroffensiven | Ardennenoffensive |
| Ardennes | Ardennes |
| Ardens kommun | Arden |
| Ardez | Ardez |
| Ardipithecus | Ardipithecus |
| Ardon | Ardon |
| Ardulfurataini Watan | Ardul-Furataini Watan |
| Ardèche | Ardèche |
| area | Fläche |
| areal | Areal |
| areal i acres | Fläche in Acres |
| areal lingvistik | Areallinguistik |
| areallingvistik | Areallinguistik |
| arealtypologi | Arealtypologie |
| Arecibo-observatoriet | Arecibo-Observatorium |
| arekanöt | Arekanuss |
| Arekapalmer | Betelpalme |
| arena | Arena |
