Zaun

Zaun is a term with multiple real-world and fictional uses. In German, Zaun means a fence or barrier; as a common noun it also appears in place names and surnames in German-speaking areas. There are several small localities with the name Zaun in Germany and Austria, and it is used as a surname in German-speaking populations.

In popular culture, Zaun denotes a fictional city-state in the world of Runeterra, the setting for League of Legends and the Netflix series Arcane. Zaun and Piltover are twin city-states, with Zaun generally portrayed as an industrial, densely populated undercity. The city is associated with extensive laboratory infrastructure, hextech research, and a high degree of social and economic stratification. Its portrayal often contrasts with Piltover’s perceived openness and affluence, highlighting themes of innovation, governance, and inequality.