河川

• 読み: かせん
• ローマ字: kasen
• 漢字の分解: 河 (ka) — river (large); 川 (sen) — river (general)
• 発音: /ka.seɴ/

意味

Rivers. A formal collective term for rivers and waterways.

A noun that is more formal and administrative than 川 (kawa, river). Used in official documents, news reports, and policy discussions about rivers, flood control, and water management. Often appears in compounds like 河川敷 (kasenshiki, riverbed/floodplain) and 河川工事 (kasen kouji, river construction work). Both kanji independently mean 'river,' creating an emphatic compound.

例文

1. 河川の氾濫を防ぐために堤防が整備された。
2. この地域には大小さまざまな河川がある。
3. 河川の水質調査が毎月行われている。

使い方ガイド

場面: government, infrastructure, news

トーン: official

起源と歴史

From Sino-Japanese: 河 (ka, river — large river) + 川 (sen, river — general). A near-synonym compound where both characters mean river, with 河 traditionally referring to larger rivers.

文化的背景

時代: Classical

世代: All ages

社会的背景: Universal