mouth of a river; lower reaches
Refers to the downstream part of a river, especially near its outlet. Often used in geographical contexts and place names.
その村は川尻に位置している。
The village is located at the mouth of the river.
川尻
The current is gentle around the lower reaches of the river.
Compound of 川 (kawa, 'river') and 尻 (shiri, 'buttocks, end'), literally 'river's end'. The reading かわじり is a standard rendaku form.