silhouette

1. N-COUNT A silhouette is the solid dark shape that you see when someone or something has a bright light or pale background behind them. (强光或浅色背景衬托下的) 黑色轮廓

The dark silhouette of the castle ruins stood out boldly against the fading light. 城堡遗迹的黑暗轮廓在暗淡光线下显得格外突出。

2. N-COUNT The silhouette of something is the outline that it has, which often helps you to recognize it. 轮廓

...the distinctive silhouette of the Manhattan skyline. …曼哈顿天际线的清晰轮廓。