n.[C]

1. （浅色背景上的）黑色轮廓像；（用黑纸剪成的）侧面影像；剪影
2. 轮廓

vt.

1. 把……画成侧面影像
2. 使现出轮廓[（+on/against）]
   There was a line of bald trees silhouetted against the horizon.

   在地平线上现出一排光秃秃的树。

n.

1. the dark shape and outline of someone or something visible in restricted light against a brighter background.
2. a representation of someone or something showing the shape and outline only, typically coloured in solid black.

v.