‘溃堤’ literally means ‘to break through a dike’ and functions as a noun meaning ‘dike breach’ — the sudden failure of a man-made embankment holding back water, often due to heavy rainfall, flooding, or structural weakness. The character 溃 (kuì) conveys collapse, rupture, or disintegration (as in 溃败 ‘defeat’ or 溃烂 ‘ulceration’), while 堤 (dī) specifically means ‘levee’ or ‘dike’ — an earthen or concrete barrier built along rivers or coasts to prevent flooding.

This term is commonly used in news reports, weather alerts, and disaster management contexts in China, especially during the rainy season or typhoon periods. It carries strong connotations of emergency, danger, and large-scale impact — not just physical damage but also displacement, agricultural loss, and infrastructure disruption. Unlike general terms for ‘flood’ (洪水), 溃堤 emphasizes the critical moment the protective structure fails, making it a pivotal event in flood narratives.