流域
りゅういき
ryuuiki
JLPT N2nounVocabularyLevel 63 - JLPT N2

Quick answer

流域 (りゅういき (ryuuiki)) means "River basin". It is read りゅういき (ryuuiki). This page covers its usage with example sentences.

Meaning

River basin

Also : Valley · Watershed · Drainage area

Learn 流域 with SRS

Free to start — no credit card. Track every review with spaced repetition.

Start free

Example Sentences

この川の流域に住む人口は数百万人だ。

このかわのりゅういきにすむじんこうはすうひゃくまんにんだ。

The population living in this river basin is several million.

アマゾン川の流域は広大な雨林を包含している。

アマゾンかわのりゅういきはこうだいなあまおりをほうがんしている。

The Amazon River basin encompasses vast rainforests.

Kanji in this word

Grammar to study at this level

Last updated Jul 22, 2026

Learn 流域 with Spaced Repetition

InitialJ uses scientifically proven SRS to help you memorize kanji and vocabulary for the JLPT. N5 is free forever; no credit card required.