ㄏㄜˊㄎㄡˇkǒu

  1. 河流出口河川海洋湖泊支流主流地方··河渠》:河口口水為害。」·孟郊轉運中丞帆影河口關中。」

estuary, the mouth of a river
estuaire
Meeresarm (S)​