watermill, millhouse
水車小屋で痛い目に遭って学んだよ。
I learned that the hard way at the watermill.
しかしこの橋向こうの家はどうするあの水車小屋もか
But what are we going to do about the house on the other side of this bridge—and that watermill, too?
— 七人の侍 (1954)
ダムの下流に水車小屋があった。
There was a watermill downstream from the dam.