noun
sparkling waves; waves glittering in moonlight or sunrise/sunset
A poetic yojijukugo describing the beautiful sight of waves sparkling, especially under moonlight or the light of the rising or setting sun. Often used in literary or evocative contexts.
月明かりの下、海は金波銀波と輝いていた。
Under the moonlight, the sea glittered with sparkling waves.
夕日を受けて、湖面が金波銀波に変わった。
Bathed in the setting sun, the lake surface turned into sparkling waves.
A yojijukugo combining 金 (gold), 波 (wave), 銀 (silver), and 波 (wave), literally 'gold waves, silver waves'. The phrase evokes the image of waves sparkling with golden and silvery light, typically from the sun or moon.