An onomatopoeic expression for a loud, rumbling or roaring sound—used for wind, machines, waves, etc.
夜中に外でゴーっという風の音が響いていた。
A rumbling wind sound (goooo) echoed outside during the night.
工場の近くを通ると機械のゴーっという音がよく聞こえる。
Passing near the factory you can often hear the machines' rumbling noise.
外で波がゴーっと打ち寄せる音がして目が覚めた。
I woke up to the sound of waves rumbling and crashing outside.