| Arabia Saudita | Arabia Saudyjska |
| Arabidopsis thaliana | Rzodkiewnik pospolity |
| Arabika | Arabika |
| Arabinosio | Arabinoza |
| arabismo | arabizm |
| arabo | Arab |
| Aracaju | Aracaju |
| Araceae | Obrazkowate |
| arachide | orzech ziemny |
| Arachis hypogaea | Orzech ziemny |
| Arachnida | Pajęczaki |
| Aracne | Arachne |
| aracnofobia | arachnofobia |
| aracnologia | arachnologia |
| Arad | Arad |
| Arados | Arwad |
| Aragnouet | Aragnouet |
| Aragon | Aragon |
| Aragona | Aragonia |
| aragonese | aragoński |
| aragonite | aragonit |
| Aragorn | Aragorn |
| Aragorn I | Aragorn I |
| aragosta | homar |
| Aragua | Aragua |
| Aral Vorkosigan | Aral Vorkosigan |
| Araldica | Heraldyka |
| Arale Norimaki | Aralka Spadkowska |
| Aralia | Aralia |
| Aralsk | Aralsk |
| Aram I | Aram I Kesziszjan |
| Aram Khačaturjan | Aram Chaczaturian |
| Aramei | Aramejczycy |
| Aramits | Aramits |
| Aramon | Aramon |
| Aramus guarauna | Bekaśnica |
| Aran | Arany |
| Aranc | Aranc |
| arancia | pomarańcza |
| Arancia meccanica | Mechaniczna pomarańcza |
| aranciata | oranżada |
| aranciato | pomarańczowy |
| aranciera | oranżeria |
| arancio | pomarańcza |
| arancione | pomarańczowy |
| Aranciopoli | Cynober |
| Arancou | Arancou |
| Arancón | Arancón |
| Arandas | Arandas |
| Arandon | Arandon |
| Araneae | Pająki |
| Araneidae | Krzyżakowate |
| Aranjuez | Aranjuez |
| Aranno | Aranno |
| Aranđelovac | Aranđelovac |
| Arapaima gigas | Arapaima |
| Arara | Arara |
| Ararat | Ararat |
| arare | orać |
| Aras | Araks |
| Arata Isozaki | Arata Isozaki |
| Arathorn II | Arathorn II |
| Arato di Soli | Aratus z Soli |
| aratro | pług |
| Aratta | Aratta |
| Arauca | Arauca |
| Araucaria | Igława |
| Araujuzon | Araujuzon |
| Araules | Araules |
| Araux | Araux |
| Aravane Rezaï | Aravane Rezaï |
| Arawak | Arawak |
| Arazzo di Bayeux | Tkanina z Bayeux |
| Arbanats | Arbanats |
| arbanella | słoik |
| Arbas | Arbas |
| Arbaz | Arbaz |
| Arbe | Rab |
| Arbecey | Arbecey |
| Arbedo-Castione | Arbedo-Castione |
| Arbellara | Arbellara |
| Arbent | Arbent |
| Arberg | Arberg |
| Arbignieu | Arbignieu |
| Arbigny | Arbigny |
| Arbigny-sous-Varennes | Arbigny-sous-Varennes |
| Arbin | Arbin |
| Arbis | Arbis |
| arbitro | arbiter |
| Arblade-le-Bas | Arblade-le-Bas |
| Arblade-le-Haut | Arblade-le-Haut |
| Arbois | Arbois |
| Arbok | Arbok |
| Arbon | Arbon |
| Arbonne | Arbonne |
| Arbonne-la-Forêt | Arbonne-la-Forêt |
| Arboras | Arboras |
| arboreto | arboretum |
| Arbori | Arbori |
| arboricoltura | uprawa drzew |
| Arbot | Arbot |
| Arbouans | Arbouans |
| Arboucave | Arboucave |
| Arbouet-Sussaute | Arbouet-Sussaute |
| Arbourse | Arbourse |
| Arboussols | Arboussols |
| Arbre | Drzewo |
| Arbrissel | Arbrissel |
| Arbus | Arbus |
| Arbusigny | Arbusigny |
| arbusto | krzak |
| Arbuto | Drzewo poziomkowe |
| Arbutus | Drzewo poziomkowe |
| Arbutus unedo | Drzewo poziomkowe |
| Arbéost | Arbéost |
| Arbérats-Sillègue | Arbérats-Sillègue |
| Arc-en-Barrois | Arc-en-Barrois |
| Arc-et-Senans | Arc-et-Senans |
| Arc-lès-Gray | Arc-lès-Gray |
| Arc-sous-Cicon | Arc-sous-Cicon |
| Arc-sous-Montenot | Arc-sous-Montenot |
| Arc-sur-Tille | Arc-sur-Tille |
| Arca dell'Alleanza | Arka Przymierza |
| Arca di Noè | Arka Noego |
| arcaccia | ławka |
| Arcachon | Arcachon |
| Arcade | Arcade |
| Arcade Fire | The Arcade Fire |
| Arcadia | Arkadia |
| Arcadio di Bisanzio | Arkadiusz |
| arcaico | archaiczny |
| Arcambal | Arcambal |
| arcangelo | archanioł |
| Arcangelo Corelli | Arcangelo Corelli |
| Arcangelo Gabriele | Archanioł Gabriel |
| Arcangelo Michele | Michał Archanioł |
| Arcangelo Raffaele | Archanioł Rafael |
| Arcangelo Raguel | Raguel |
| Arcangues | Arcangues |
| Arcanine | Arcanine |
| arcano | tajemnica |
| arcata | podeszwa |
| Arceau | Arceau |
| Arcenant | Arcenant |
| Arcens | Arcens |
| Arces-Dilo | Arces-Dilo |
| Arces-sur-Gironde | Arces |
| Arcesilao | Arkezylaos |
| Arcey | Arcey |
| Arch | Łuk |
| Arch Linux | Arch Linux |
| Archaea | Archeowce |
| Archaeoceti | Prawalenie |
| Archaeocyatha | Archeocjaty |
| Archaeognatha | Przerzutki |
| Archaeopteryx lithographica | Praptak |
| Archaeothyris florensis | Archeotyris |
| Archail | Archail |
| Archamps | Archamps |
| Archangelo Haniele | Archanioł Haniel |
| Arche | Arche |
| Archeano | Archaik |
| Archelange | Archelange |
| Archelao | Archelaos z Aten |
| Archelon ischyros | Archelon ischyros |
| Archen | Archenlandia |
| archeo- | archeo- |
| Archeoastronomia | Archeoastronomia |
| archeologia | archeologia |
| Archeologia sperimentale | Archeologia doświadczalna |
| archeologico | archeologiczny |
| archeologo | archeolog |
| Archeozoologia | Archeozoologia |
| Archer John Porter Martin | Archer Martin |
| Arches | Arches |
| archetipo | archetyp |
| Archettes | Archettes |
| archetto | smyczek |
| archi- | archi- |
| Archiac | Archiac |
| Archibald Hahn | Archie Hahn |
| Archibald Joseph Cronin | Archibald Joseph Cronin |
| Archibald Macleish | Archibald MacLeish |
| Archibald Vivian Hill | Archibald Vivian Hill |
| Archibald Wavell | Archibald Wavell |
| archibugio | arkebuz |
| Archie | Archie |
| Archignac | Archignac |
| Archignat | Archignat |
| Archigny | Archigny |
| Archiloco | Archiloch |
| Archimede | Archimedes |
| Archimede Pitagorico | Diodak |
| Archimedes | Archimedes |
| Archingeay | Archingeay |
| Archita | Archytas z Tarentu |
| architetto | architekt |
| architettonico | architektoniczny |
| architettura | architektura |
| Architettura ARM | Architektura ARM |
| Architettura barocca | Architektura baroku |
| Architettura bizantina | Architektura bizantyjska |
| Architettura blob | Blob |
| architettura del paesaggio | architektura krajobrazu |
| Architettura del Rinascimento | Architektura renesansu |
