河か渠きょ

noun

waterway; canal; river

A somewhat formal or technical term for a waterway, canal, or river, often used in geographical or engineering contexts.

• この地ち域いきには古ふるい河か渠きょが多おおく残のこっている。

  Many old waterways remain in this region.

• 河か渠きょの整せい備びが都と市しの発はっ展てんに寄き与よした。

  The development of canals contributed to the city's growth.