#toponym definitions
- Apure — A major river in southwestern Venezuela, a left tributary of the Orinoco River, flowing over eight hundred kilometers and navigable for large sections; it also represents the name of a federal state located in the plains region (Los Llanos), a structural zone renowned for cattle ranching, rich biodiversity, and massive seasonal flooding.
- Apurimac — A major river in Peru that constitutes the most distant source of the Amazon River, originating in the alpine mountains of the Arequipa region; it also represents the name of a Peruvian administrative department located in the south of the country, characterized by a mountainous structural relief, deep canyons, and a strong indigenous Quechua cultural heritage.
- Aquilea — A historical, Spanish toponymic form or an archaic-literary Romanian variant for the famous ancient city of Aquileia in northeastern Italy (Friuli-Venezia Giulia region); it can also designate a municipality in the Basque Country or a parish in Spain, being a name of Roman resonance closely linked to archaeological sites and ancient imperial trade routes.