| Arbaz | Arbaz |
| Arbedo-Castione | Arbedo-Castione |
| Arbellara | Arbellara |
| Arbent | Arbent |
| Arberg | Arberg |
| Arbignieu | Arbignieu |
| Arbigny | Arbigny |
| Arbil | Arbela |
| Arbil Governorate | Irbil |
| Arbin | Arbin |
| arbiter | arbiter |
| arbitrageur | arbitrażysta |
| arbitrary | arbitralny |
| Arbitrary-precision arithmetic | Duże liczby całkowite |
| arbitrator | rozjemca |
| Arbitress | Sćdzia |
| Arboga Municipality | Gmina Arboga |
| Arbois | Arbois |
| Arbon | Arbon |
| Arbonne | Arbonne |
| Arbonne-la-Forêt | Arbonne-la-Forêt |
| Arbor vitae | Drzewo życia |
| arboretum | arboretum |
| arboriculture | uprawa drzew |
| Arbouet-Sussaute | Arbouet-Sussaute |
| Arbre | Drzewo |
| Arbrissel | Arbrissel |
| Arbuscular mycorrhiza | Grzyby mikoryzowe |
| Arbutus | Drzewo poziomkowe |
| Arbérats-Sillègue | Arbérats-Sillègue |
| arc | łuk |
| Arc de Triomf | Łuk triumfalny |
| Arc de Triomphe | Łuk Triumfalny w Paryżu |
| Arc de Triomphe du Carrousel | Arc du Carrousel |
| Arc minute | Minuta kątowa |
| Arcachon | Arcachon |
| arcade | arkada |
| Arcade Fire | The Arcade Fire |
| Arcadi Volodos | Arkadij Wołodos |
| Arcadia | Arkadia |
| Arcadius | Arkadiusz |
| Arcady | Arkadia |
| Arcambal | Arcambal |
| Arcangelo Corelli | Arcangelo Corelli |
| Arcangues | Arcangues |
| Arcee | Arsy |
| Arcesilaus | Arkezylaos |
| arch | łuk |
| Arch Linux | Arch Linux |
| Arch of Constantine | Łuk Konstantyna Wielkiego |
| Arch of Septimius Severus | Brama Srebrników |
| Arch of Titus | Łuk Tytusa |
| Arch of Triumph | Łuk triumfalny |
| Archaea | Archeowce |
| Archaean | archaik |
| Archaeoastronomy | Archeoastronomia |
| Archaeoceti | Prawalenie |
| Archaeocyatha | Archeocjaty |
| Archaeognatha | Przerzutki |
| archaeological | archeologiczny |
| Archaeological culture | Kultura archeologiczna |
| Archaeological industry | Przemysł |
| archaeological site | stanowisko archeologiczne |
| archaeologist | archeolog |
| archaeology | archeologia |
| Archaeopteryx | Praptak |
| Archaeornithoides | Archeornitoid |
| Archaeornithomimus | Archeornitomim |
| Archaeothyris | Archeotyris |
| archaic | archaiczny |
| archangel | archanioł |
| archbishop | arcybiskup |
| Archbishop Atticus of Constantinople | Attyka |
| Archbishop Flavian of Constantinople | Flawian |
| Archbishop of America | Prawosławni arcybiskupi Ameryki |
| Archbishop of Canterbury | Arcybiskupi Canterbury |
| Archbishop of Cologne | Arcybiskupi Kolonii |
| Archbishop of Riga | Archidiecezja ryska |
| Archbishopric of Cologne | Arcybiskupi Kolonii |
| Archbishopric of Magdeburg | Arcybiskupstwo magdeburskie |
| Archbishopric of Mainz | Arcybiskupi Moguncji |
| Archbishopric of Riga | Archidiecezja ryska |
| Archbishopric of Salzburg | Salzburg |
| Archbishopric of Trier | Arcybiskupi Trewiru |
| Archbishopric of Warmia | Archidiecezja warmińska |
| Archdiocese of Cologne | Arcybiskupi Kolonii |
| Archdiocese of Toledo | Biskupi i arcybiskupi Toledo |
| Archdiocese of Warsaw | Archidiecezja warszawska |
| Archduchess Elisabeth Franziska of Austria | Elżbieta Franciszka Maria Austriacka |
| Archduchess Elisabeth Marie of Austria | Elżbieta Maria Habsburg |
| Archduchess Gisela of Austria | Arcyksiężniczka Gizela |
| Archduchess Maria Anna of Austria | Marianna Habsburg |
| Archduchess Maria Johanna Gabriela of Austria | Maria Joanna Gabriela Habsburg |
| Archduchess Maria Josepha of Austria | Maria Józefa Habsburg |
| Archduchess Maria Magdalena of Austria | Maria Magdalena Austriaczka |
| Archduchess Marie Amalie of Austria | Maria Amalia Habsburg |
| Archduchess Marie Astrid of Austria | Maria-Astrid Luksemburska |
| Archduchess Marie Valerie of Austria | Maria Waleria Habsburg |
| Archduchess Michaela of Austria | Michaela von Habsburg |
| Archduchess Sophie of Austria | Arcyksiężna Zofia |
| archduke | arcyksiążę |
| Archduke Carl Ludwig of Austria | Karol Ludwik |
| Archduke Charles Joseph of Austria | Karol Józef Habsburg |
| Archduke Charles Stephen of Austria | Karol Stefan Habsburg |
| Archduke Ernest of Austria | Ernest Habsburg |
| Archduke Eugen of Austria | Eugeniusz Ferdynand Habsburg |
| Archduke Ferdinand Charles of Austria | Ferdynand Habsburg |
| Archduke Ferdinand Karl Joseph of Austria-Este | Ferdynand Karol Józef Habsburg-Este |
| Archduke Ferdinand of Austria-Este | Ferdynand Habsburg |
| Archduke Franz Ferdinand of Austria | Franciszek Ferdynand Habsburg |
| Archduke Franz Karl of Austria | Franciszek Karol Habsburg |
| Archduke Karl Albrecht of Austria | Karol Olbracht Austriacki |
| Archduke Karl Ferdinand of Austria | Karol Ferdynand Habsburg |
| Archduke Leopold Wilhelm of Austria | Leopold Wilhelm Habsburg |
| Archduke Ludwig Viktor of Austria | Ludwik Wiktor Habsburg |
| Archduke Maximilian Franz of Austria | Maksymilian Franciszek Habsburg |
| Archduke Otto Franz of Austria | Otto Franciszek Austriacki |
| Archduke Wilhelm Franz of Austria | Wilhelm Franciszek Karol Habsburg |
| Archduke Wilhelm of Austria | Wilhelm Habsburg |
| Arche | Arché |
| Archean | archaik |
| archegonium | rodnia |
| Archelaus | Archelaos z Aten |
| Archelaus I of Macedon | Archelaos I Macedoński |
| Archelaus of Cappadocia | Archelaos z Aten |
| Archelon | Archelon ischyros |
| Archenland | Archenlandia |
