This is the 7921st most frequent Japanese word.
堰堤
"堰堤" means "dam" or "embankment" used to block or control water flow.
In this sentence, '堰堤' refers to a physical structure built to control the flow of water in a river.
この川には大きな堰堤があります。
There is a large dam (weir) in this river.
'堰堤' here is used to describe the function of a dam in protecting against flooding.
堰堤が氾濫を防ぐ役割を果たしている。
The dam plays a role in preventing floods.
Here, '堰堤' highlights the construction aspect of the dam, involving engineering and environmental significance.