Word
河川
Meaning in Englishrivers
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Word context
What it means
河川 (kasen) means rivers. It denotes natural watercourses that form a connected river system and is used in geography, hydrology, and water management contexts.
Main meanings
- technical hydrology term for the network of rivers within a drainage basin
- formal term in environmental planning, flood control, and river management contexts
- appears in legal and government documents related to rivers and water systems
How to use it
Primarily used in formal or technical contexts such as geography, hydrology, civil engineering, and policy documents; common collocations include 河川法, 河川整備, and 河川管理. In casual speech people often use 川 or 河 to refer to individual rivers or smaller waterways.
Variants and close terms
- 水系 (suikei): water system; river network
- 川 (kawa): river; casual usage
- 水路 (suiro): waterway; related term used in navigation and civil works
Composition
- 河: river, broad sense
- 川: river, stream
- 河川: combining both to mean the river network or river system
Word class
noun (名詞)
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