‘堤岸’ (dī àn) is a compound noun meaning ‘dike bank’ or ‘levee’—a raised embankment built along a river, lake, or coast to prevent flooding. The first character 堤 (dī) means ‘dike’ or ‘embankment’, referring specifically to an artificial structure designed to hold back water. The second character 岸 (àn) means ‘bank’ or ‘shore’, denoting the land alongside a body of water. Together, 堤岸 emphasizes both the engineered nature and the geographical location of the structure: it’s not just any riverside land, but a reinforced, human-made bank intended for flood control and water management.

This term is commonly used in official, environmental, and infrastructure contexts—such as urban planning reports, weather bulletins, or news about flood prevention. It carries a formal, technical tone and is rarely used in casual speech. You’ll often see it paired with verbs like 修建 (to build), 加固 (to reinforce), or 溃决 (to breach), and frequently modified by adjectives like 防洪 (flood-control) or 河 (river).