| autohipnoza | autohypnosis |
| Autoire | Autoire |
| AutoIt | AutoIt |
| autokar | bus |
| autokefalia | autocephaly |
| autoklaw | autoclave |
| Autokowariancja | Autocovariance |
| autokracja | autocracy |
| autokratyzm | autocratism |
| autokreacja | autocreation |
| Autolykos | Autolycus |
| Automake | Automake |
| automat | automaton |
| Automat Büchiego | Büchi automaton |
| Automat oddechowy | Diving regulator |
| Automat perkusyjny | Drum machine |
| Automatic Activation Device | Automatic activation device |
| Automatic for the People | Automatic for the People |
| Automatic Identification System | Automatic Identification System |
| Automatic Position Reporting System | Automatic Position Reporting System |
| Automatic Private IP Addressing | Zeroconf |
| Automatic Radar Plotting Aid | Automatic Radar Plotting Aid |
| Automatyczne dowodzenie twierdzeń | Automated theorem proving |
| Automatyczne stabilizatory | Automatic stabiliser |
| automatyczny | automatic |
| Automatyczny Statek Transportowy | Automated Transfer Vehicle |
| Automatyka domowa | Home automation |
| automatyka strumieniowa | fluidics |
| Automedon | Automedon |
| automobil | car |
| automobilista | automobilist |
| Automobilwerk Eisenach | Automobilwerk Eisenach |
| Autonoe | Autonoe |
| autonomia | autonomy |
| Autonomia Palestynska | Palestinian National Authority |
| Autonomia Palestyńska | Palestinian National Authority |
| Autonomiczna Republika Krymu | Crimea |
| Autonomiczna Socjalistyczna Republika Radziecka | Autonomous republics of the Soviet Union |
| Autonomiczne województwo śląskie | Autonomous Silesian Voivodeship |
| autonomiczny | autonomous |
| Autonomiczny układ nerwowy | Autonomic nervous system |
| autoportret | self-portrait |
| Autoprzeciwciała | Autoantibody |
| autopsja | autopsy |
| autor | architect |
| Autor Sassera skazany | Suspended sentence for Sasser worm author |
| autoreferencja | self-reference |
| Autoresponder | Autoresponder |
| Autorotacja | Autorotation |
| autorstwo | authorship |
| Autorytarne zaburzenie osobowości | Authoritarian personality |
| autorytatywny | authoritarian |
| autorytet | authority |
| Autorzy fantastyki naukowej | List of science fiction authors |
| Autorzy fantasy | List of fantasy authors |
| Autorzy gier fabularnych | List of designers of role-playing games |
| Autorzy horroru | List of horror fiction writers |
| Autosan | Autosan |
| Autosegment A | City car |
| Autosegment B | Supermini car |
| Autosegment D | Large family car |
| Autosegment E | Executive car |
| Autosegment F | Full-size car |
| Autosom | Autosome |
| autostop | hitchhiking |
| autostopowicz | hitchhiker |
| autostrada | expressway |
| Autostrada Braterstwo i Jedność | Highway Brotherhood and Unity |
| Autostrada do nieba | Highway to Heaven |
| Autostrada Interoceaniczna | Interoceanic Highway |
| Autostrada Panamerykańska | Pan-American Highway |
| Autostrada transkanadyjska | Trans-Canada Highway |
| Autostrady i drogi ekspresowe w Austrii | Autobahns of Austria |
| Autostrady i drogi ekspresowe w Hiszpanii | List of autopistas and autovías in Spain |
| Autostrady w Luksemburgu | List of motorways in Luxembourg |
| Autostrady w Polsce | Roads and expressways in Poland |
| Autostrady we Francji | Autoroutes of France |
| autosugestia | autosuggestion |
| Autotools | GNU build system |
| Autruche | Ostrich |
| Autun | Autun |
| Auty | Auty |
| autystyczny | autistic |
| autyzm | autism |
| Autyzm dziecięcy | Autism |
| Auvernaux | Auvernaux |
| Auvers-sur-Oise | Auvers-sur-Oise |
| Auvillars | Auvillars |
| Aux-Aussat | Aux-Aussat |
| Auxerre | Auxerre |
| Auxey-Duresses | Auxey-Duresses |
| Auxi-le-Château | Auxi-le-Château |
| Auxiliary power unit | Auxiliary power unit |
| Auxonne | Auxonne |
| Auzon | Ozone |
| Außernzell | Außernzell |
| Aušra Augustinavičiūtė | Aušra Augustinavičiūtė |
| Ava | AVA |
| Ava Gardner | Ava Gardner |
| Avahi | Woolly lemur |
| Availles-sur-Seiche | Availles-sur-Seiche |
| Avajan | Avajan |
| Aval | Bill guarantee |
| Avallon | Avallon |
| Avalokitesvara | Avalokiteśvara |
| Avalon | Avalon |
| Avaray | Avaray |
| Avari | Avari |
| Avarua | Avarua |
| Avatamsaka Sutra | Avatamsaka Sutra |
| Avaux | Avaux |
| Avaí Florianópolis | Avaí Futebol Clube |
| Avebury | Avebury |
| Avedis Zildjian Company | Avedis Zildjian Company |
| Avegno | Avegno Vallemaggia |
| Aveiro | Aveiro |
| Avelengo | Hafling |
| Avella | Avella |
| Avellaneda | Avellaneda |
| Avellino | Avellino |
| Avenay | Avenay |
| Avenches | Avenches |
| Avenir Beggen | FC Avenir Beggen |
| Avensac | Avensac |
| Avenue des Champs-Élysées | Champs-Élysées |
| Averno | Lake Avernus |
| Avery | Avery |
| Avery Brooks | Avery Brooks |
| Avery Dulles | Avery Dulles |
| Averøy | Averøy |
| Avesnes | Avesnes |
| Avesnes-sur-Helpe | Avesnes-sur-Helpe |
| Aveux | Confession |
| Aveyron | Aveyron |
| Avezan | Avezan |
| AVG | AVG Anti-Virus |
| AVI | Audio Video Interleave |
| Avi Dichter | Avi Dichter |
| Aviano | Aviano |
| Aviator | The Aviator |
| Avid | Avid Technology |
| Avigdor Liberman | Avigdor Lieberman |
| Avignon-lès-Saint-Claude | Avignon-lès-Saint-Claude |
| Avillers-Sainte-Croix | Avillers-Sainte-Croix |
| Avilés | Avilés |
| Avion | Aircraft |
| Avior | Epsilon Carinae |
| Avira | Avira |
| Aviron | Rowing |
| Avis | House of Aviz |
| Avisa z Gloucester | Isabel of Gloucester |
| Avishai Braverman | Avishay Braverman |
| AVIVO | AVIVO |
| Aviz | Avis |
| AVN Awards | AVN Awards |
| Avoine | Oat |
| Avolsheim | Avolsheim |
| Avon | Avon |
| Avord | Avord |
| Avot | Avaux |
| AVP | AVP |
| Avraham Grant | Avram Grant |
| Avraham Shochat | Avraham Shochat |
| Avram Hershko | Avram Hershko |
| Avranches | Avranches |
| Avrechy | Avrechy |
| Avrig | Avrig |
| Avril | April |
| Avril Lavigne | Avril Lavigne |
| Avro | Avro |
| Avro Anson | Avro Anson |
| Avro Lancaster | Avro Lancaster |
| Avro Lincoln | Avro Lincoln |
| Avro Manchester | Avro Manchester |
| Avro Vulcan | Avro Vulcan |
| Avry | Avry |
| AvtoVAZ | AvtoVAZ |
| AvtoZAZ | ZAZ |
| Avully | Avully |
| AVUS | AVUS |
| Avusy | Avusy |
| Avène | Avesnes |
| Avéron-Bergelle | Avéron-Bergelle |
| Aw | Av |
| Awaceratops | Avaceratops |
| AWACS | Airborne Warning and Control System |
| Awaji | Awaji Island |
| Awalokiteśwara | Avalokitesvara |
| Awalonia | Avalonia |
| Awangard Omsk | Avangard Omsk |
| Awangarda | Avant-garde |
| awangardowy | vanguard |
| awantura | argument |
| awanturnik | brawler |
| awaria | break |
| awaria jądrowa | nuclear accident |
| Awarowie | Eurasian Avars |
| awaryjny | emergency |
| Awaryjny Hologram Medyczny | Emergency Medical Hologram |
| Awatar | Avatar |
| Awatara | Avatar |
| AWD-Arena | AWD-Arena |
| Awdijiwka | Avdiivka |
| Aweida | Aweida |
| Awentyn | Aventine Hill |
| Awerroes | Averroes |
| Awerroizm | Averroism |
| awers | obverse |
| Awers i rewers | Obverse and reverse |
| awersja | aversion |
