| arieggiare | resemble |
| arieggiato | breezy |
| Ariel Ltd | Ariel Ltd |
| Ariel Ortega | Ariel Ortega |
| Ariel Sharon | Ariel Sharon |
| Arien | Arien |
| ariete | ram |
| ariete idraulico | ram |
| arietta | air |
| Arile | Aryl |
| Arimaspi | Arimaspi |
| aringa | peg |
| aringa affumicata | bloater |
| aringhe | herrings |
| Ario | Arius |
| Arioaldo | Arioald |
| Ariocarpus | Ariocarpus |
| Arioch | Arioch |
| Arioli | Arioli |
| Ariolimax californicus | Banana slug |
| Arion rufus | Red Slug |
| Arione | Arion |
| Arionidae | Arionidae |
| Ariovisto | Ariovistus |
| Ariperto I | Aripert I |
| Ariperto II | Aripert II |
| Aripiprazolo | Aripiprazole |
| Aris Basketball Club | Aris BC |
| Aris Salonicco | Aris FC |
| Arisdorf | Arisdorf |
| Arishima Takeo | Arishima Takeo |
| Aristagora | Aristagoras |
| Aristarco di Samo | Aristarchus of Samos |
| Aristarco di Samotracia | Aristarchus of Samothrace |
| Aristau | Aristau |
| Aristeo | Aristaeus |
| Aristide | Aristides |
| Aristide Briand | Aristide Briand |
| Aristide Bruant | Aristide Bruant |
| Aristide Cavaillé-Coll | Aristide Cavaillé-Coll |
| Aristide di Mileto | Milesian tale |
| Aristides de Sousa Mendes | Aristides de Sousa Mendes |
| Aristides Pereira | Aristides Pereira |
| Aristidis Konstantinidis | Aristidis Konstantinidis |
| Aristippo | Aristippus |
| Aristobulo I | Aristobulus |
| Aristobulo IV | Aristobulus IV |
| Aristocle di Messene | Aristocles of Messene |
| aristocratica | aristocrat |
| aristocraticamente | aristocratically |
| aristocratico | aristocratic |
| aristocrazia | aristocracy |
| aristocrazìa | aristocracy |
| aristocràtico | aristocratic |
| Aristofane | Aristophanes |
| Aristofane di Bisanzio | Aristophanes of Byzantium |
| Aristosseno | Aristoxenus |
| Aristosuchus pusillus | Aristosuchus |
| Aristotele | Aristotle |
| Aristotele Onassis | Aristotle Onassis |
| Aristotelismo | Aristotelianism |
| aritmetica | arithmetic |
| Aritmetica di Robinson | Robinson arithmetic |
| Aritmetica modulare | Modular arithmetic |
| aritmeticamente | arithmetically |
| aritmetico | arithmetic |
