| amia | bowfin |
| Amiata | Monte Amiata |
| Amica Wronki | Amica Wronki |
| Amida | Diyarbakır |
| amidol | amidol |
| Amidy | Amide |
| Amiens | Amiens |
| Amiga | Amiga |
| Amiga CDTV | Amiga CDTV |
| Amiga Unix | Amiga Unix |
| AmigaE | AmigaE |
| Amigny | Amigny |
| Amikiri | Amikiri |
| Amillis | Amillis |
| Amilly | Amillis |
| Amimitl | Amimitl |
| Amin Dżemajel | Amine Gemayel |
| Amin Maalouf | Amin Maalouf |
| Aminadab | Amminadab |
| Aminoglikozydy | Aminoglycide |
| aminokwas | amino acid |
| aminokwas egzogenny | indispensable amino acid |
| aminokwasy | amino acid |
| Aminotransferaza alaninowa | Alanine transaminase |
| Aminotransferaza asparaginianowa | Aspartate transaminase |
| Amintore Fanfani | Amintore Fanfani |
| aminy | amine |
| Aminy aromatyczne | Aromatic amine |
| Aminy biogenne | Biogenic amine |
| Amir Peretz | Amir Peretz |
| Amiranty | Amirante Islands |
| AMISOM | African Union Mission to Somalia |
| Amistad | Amistad |
| amisz | Amish |
| Amisze | Amish |
| amiszka | Amish |
| Amitabha | Amitabha |
| Amiton | VG |
| Amityville Horror | The Amityville Horror |
| Amjad Hussain Farooqi | Amjad Farooqi |
| Amkar Perm | FC Amkar Perm |
| Amleto Giovanni Cicognani | Amleto Giovanni Cicognani |
| amlodypina | amlodipine |
| Amman | Amman |
| Ammassalik | Ammassalik |
| Ammer | Amper |
| Ammerbuch | Ammerbuch |
| Ammerndorf | Ammerndorf |
| Ammerthal | Ammerthal |
| Ammi-saduqa | Ammi-Saduqa |
| Ammianus Marcellinus | Ammianus Marcellinus |
| Ammit | Ammit |
| Ammonici | Ammon |
| Ammonios Sakkas | Ammonius Saccas |
| amnestia | amnesty |
| Amnesty International | Amnesty International |
| Amnesty International oskarża Izrael o zbrodnie wojenne | Amnesty International accuses Israel of war crimes in Lebanon |
| amnezja | amnesia |
| Amnezja organiczna | Amnesia |
| Amnéville | Amnéville |
| Amoeba | Amoeba distributed operating system |
| Amoebozoa | Amoebozoa |
| amok | amok |
| Amol | Amol |
| Amon | Amun |
| Amon Dîn | Warning beacons of Gondor |
| Amon Göth | Amon Göth |
| Amon Sûl | Weathertop |
| Amon Tobin | Amon Tobin |
| Among the Living | Among the Living |
| Amongst the Catacombs of Nephren-Ka | Amongst the Catacombs of Nephren-Ka |
| Amonherchopszef | Amun-her-khepeshef |
| amoniak | ammonia |
| amonifikacja | ammonification |
| amonit | amonito |
| Amonity | Ammonite |
| Amor | Cupid |
| Amorbach | Amorbach |
| Amores perros | Amores perros |
| Amorfa | Amorpha |
| amorficzny | amorphous |
| Amorgos | Amorgos |
| Amorots-Succos | Amorots-Succos |
| Amorphis | Amorphis |
| amortyzator | damper |
| Amoryci | Amorite |
| Amos | Amos |
| Amos Gitai | Amos Gitai |
| Amos Oz | Amos Oz |
| Ampelmännchen | Ampelmännchen |
| amper | ampere |
| amperogodzina | ampere-hour |
| amperomierz | ammeter |
| Ampfing | Ampfing |
| Amphiprion bicinctus | Red Sea clownfish |
| Ampleksus | Amplexus |
| Amplier | Amplier |
| amplituda | amplitude |
| Amponville | Amponville |
| AMPS | Advanced Mobile Phone System |
| Ampsivarii | Ampsivarii |
| amputacja | amputation |
| amputować | amputate |
| ampułka | ampoule |
| Ampułki Lorenziniego | Ampullae of Lorenzini |
| AMR | Adaptive multi-rate compression |
| Amras | Amras |
| Amritsar | Amritsar |
| Amrod | Amrod |
| Amstel | Amstel |
| Amsterdam | Amsterdam |
| Amsterdam ArenA | Amsterdam ArenA |
| Amsterdam Bijlmer ArenA | Amsterdam Bijlmer ArenA railway station |
| Amsterdam Centraal Station | Amsterdam Centraal railway station |
| Amsterdam Sloterdijk | Amsterdam Sloterdijk railway station |
| Amsterdam Zuid | Amsterdam Zuid railway station |
| Amstrad CPC | Amstrad CPC |
| Amszaspandowie | Amesha Spenta |
| Amt | AMT |
| Amtmand | List of County Governors of Sweden |
| Amtrak | Amtrak |
| Amtzell | Amtzell |
| Amu-daria | Amu Darya |
| amulet | amulet |
| Amulius | Amulius |
| Amundsen-Scott | Amundsen-Scott South Pole Station |
| amunicja | ammunition |
| Amunicja bezłuskowa | Caseless ammunition |
| Amunicja pośrednia | Intermediate cartridges |
| Amunicja przeciwpancerna | Armor-piercing shot and shell |
| Amunicja smugowa | Tracer ammunition |
| Amur | Amur |
| Amur biały | Grass carp |
| Amur Chabarowsk | Amur Khabarovsk |
| Amur czarny | Black carp |
| Amurozaur | Amurosaurus |
| Amursk | Amursk |
| amuzja | amusia |
| AMV Video | AMV video format |
| Amwrosijewka | Amvrosiivka |
| Amy | Amy |
| Amy Diamond | Amy Diamond |
| Amy Frazier | Amy Frazier |
| Amy Lee | Amy Lee |
| Amy Smart | Amy Smart |
| Amy Winehouse | Amy Winehouse |
| amylaza | amylase |
| Amyntas III Macedoński | Amyntas III of Macedon |
| Amyrtajos | Amyrtaeus |
| Amzonia | Amsonia |
| Amália Rodrigues | Amália Rodrigues |
| Amédée Louis Michel Lepeletier | Amédée Louis Michel Lepeletier de Saint Fargeau |
| Amélie Lundahl | Amélie Helga Lundahl |
| Amélie Mauresmo | Amélie Mauresmo |
| Amélie Nothomb | Amélie Nothomb |
| Amélie-les-Bains-Palalda | Amélie-les-Bains-Palalda |
| América Belo Horizonte | América Futebol Clube |
| América Cali | América de Cali |
| América Manaus | América Futebol Clube |
| América Meksyk | Club América |
| América Natal | América Futebol Clube |
| América Rio de Janeiro | América Football Club |
| Américo Gallego | Américo Gallego |
| Amöneburg | Amöneburg |
| An Elephant Makes Love to a Pig | An Elephant Makes Love to a Pig |
| An Jung-geun | An Jung-geun |
| An-Nadur | Nador |
| An-Nadżaf | Najaf Governorate |
| An-Nahl | An-Nahl |
| An-Nama | Néma |
| An-Naml | An-Naml |
| An-Nasr | An-Nasr |
| An-Nisa | An-Nisa |
| An-Nukat al-Chams | An Nuqat al Khams |
| Ana Carolina Reston | Ana Carolina Reston |
| Ana de la Reguera | Ana de la Reguera |
| Ana Guevara | Ana Guevara |
| Ana Ivanović | Ana Ivanović |
| Ana Jelušić | Ana Jelušić |
| Ana Popović | Ana Popović |
| Ana Urkijo Elorriaga | Ana Urkijo |
| Ana-Lucía Cortez | Ana Lucia Cortez |
| Anabaptyzm | Anabaptist |
| Anabar | Anabar |
| Anabel Medina Garrigues | Anabel Medina Garrigues |
| anabolizm | anabolism |
| Anacharsis | Anacharsis |
| anachronizm | anachronism |
| Anacostia River | Anacostia River |
| Anacron | Anacron |
| Anadyr | Anadyr |
| Anaerob | Anaerobic organism |
| anafilaksja | anaphylaxis |
| anaglif | anaglyph |
| Anagni | Anagni |
| anagram | anagram |
| Anahata | Anahata |
| Anaheim | Anaheim |
| Anaheim Ducks | Anaheim Ducks |
| Anahita | Anahita |
| Anairë | Anairë |
| Anakin Solo | Anakin Solo |
| Anaklet | Pope Anacletus |
| anakonda | anaconda |
| Anakonda zielona | Green Anaconda |
| Anakreont z Teos | Anacreon |
| anakreontyk | anacreontic |
| Anaksagoras | Anaxagoras |
| Anaksandridas II | Anaxandridas II |
| Anaksarchos z Abdery | Anaxarchus |
| Anaksymander | Anaximander |
| Anaksymenes | Anaximenes of Miletus |
