noun
water's edge; shoreline
Refers to the edge of a body of water, such as a river, lake, or sea. Somewhat literary or formal; in everyday speech, 水辺 (みずべ) or 岸 (きし) are more common.
彼は水涯に立って遠くを見つめていた。
He stood at the water's edge and gazed into the distance.