ダムdamu

1. noundam
   大雨おおあめのためにダムが決壊けっかいした。↗

   The dam burst owing to the heavy rain.

• Synonym堰せきNeutralA low weir or sluice built to hold back water, often to divert it for irrigation; 「ダム」 is far larger in scale.
• Synonym堰堤えんていWrittenWritten, engineering-flavored term for a dam built across a river or valley; in everyday speech 「ダム」 is the usual word.
• Related堤つつみNeutralBanks of earth piled up along rivers or ponds; has an old-fashioned flavor. 「ダム」 is a large structure that cuts off the flow of water and sediment.
• Related堤防ていぼうNeutralFlood-protection embankments raised along riverbanks or coasts; 「ダム」 is a dam built across a valley or around a basin to block water and sediment.
• Related土手どてNeutralEarthen banks along rivers, often used as walking paths; 「ダム」 is a large dam structure that holds back water or sediment.
• Related築堤ちくていWrittenWritten term for the work of building embankments or the embankment itself; 「ダム」 is a barrier that blocks water and sediment, not a bank raised along the shore.

Use 「ダム」 for dams built across rivers or valleys to hold back water or sediment. For flood embankments along rivers or coasts say 「堤防」, for earthen riverside banks 「土手」, and for low irrigation weirs 「堰」; 「築堤」 and 「堰堤」 are written terms.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 水みずや砂すななどの流ながれをせくために、川かわや谷たにを横断おうだんしたり窪地くぼちを囲かこんだりして作つくられる構造物こうぞうぶつ。
2. 国際こくさい大だいダム会議かいぎにて定義ていぎされている、堤つつみ高だかが5.0メートル以上いじょうで貯水ちょすい容量ようりょうが300万さんれいれいまん立方メートルりっぽうめーとる以上いじょうの堰堤えんてい。
3. 日本にっぽんの河川法かせんほうで定さだめられているハイダム。