#structural geography
- Adirondack — A mountain massif and large natural park located in northeastern New York State, United States of America, structurally characterized by a geological dome shape with thousands of lakes, rivers, and forested peaks; in the history of design and universal culture, the term designates an iconic style of outdoor furniture (specifically the Adirondack chair, featuring a slatted slanted back and very wide armrests) and a rustic architectural style specific to American mountain lodges.
- Aluta — The ancient Latin name of the Olt River, frequently used in documents from the Roman Empire period, old cartographic maps, and ancient historical sources. As a structural historical hydronym, it defines one of the most important watercourses on Dacia's territory, along which the Romans built the fortified defensive system known as Limes Alutanus.
- Alvarado — A surname of Spanish origin, etymologically derived from a toponym meaning 'whitewashed place' or 'riverbed washed by water'; the name of several cities and administrative units in Spain and Latin America. Historically, it is associated with the famous conquistador Pedro de Alvarado, and currently, it is borne by numerous public figures, athletes, and international politicians.
- Alvear — A surname of Spanish origin, historically linked to the Cantabria region; the name of several localities, departments, and streets in Argentina and Spain. In an international historical context, the name is closely associated with General Carlos María de Alvear, a prominent figure in the Argentine War of Independence, with the toponym being frequently used to name administrative units in his honor.
- Amersfoort — A medium-sized city and municipality in the Netherlands, located in the province of Utrecht, representing a major structural railway and economic hub for the Dutch transport network. The locality is internationally renowned for its perfectly preserved medieval historic center, architectural monuments, concentric canals, and well-maintained fortified gates.
- Andros — The northernmost island of the Cyclades archipelago in the Aegean Sea, belonging to Greece, historically renowned for its mountainous landscape, abundant natural springs, and long-standing maritime tradition. This structural toponym also identifies the largest island in the Bahamas (Andros Island), famous for its barrier reef and blue holes.
- Andrusovo — A rural locality situated in the Smolensk Oblast, Russian Federation, globally famous in historiography due to the 'Truce of Andrusovo' (1667). This structural historical treaty, signed between the Tsardom of Russia and the Polish-Lithuanian Commonwealth, ended the Thirteen Years' War and geopolitically reshaped Eastern Europe.
- Anemogenous — Produced, generated, shaped, or structurally determined by the action of wind or air currents (such as aeolian landforms or surface sea waves). In rare or adapted medical imaging contexts, it can describe dynamic acoustic phenomena simulating air-like fluid turbulences.
- Antilești — A rare toponymic name designating a small rural settlement, a hamlet, or a micro-toponym (place name) located within the territory of Romania, historically based on a family surname or a community nickname; structurally, it denotes a village hearth formed around the descendants of a common ancestor. The name is closely linked to traditional rural social organization.