水すい声せいすいせいMeanings1nounsound of flowing waterformal or literaryFormal or literary term for the sound of water flowing, such as a stream or river. Not used in everyday conversation.夜よるの静しずけさの中なか、川かわの水すい声せいだけが聞きこえていた。In the stillness of the night, only the sound of the river could be heard.