名词:blackener 动词过去式:blackened 过去分词:blackened 现在分词:blackening 第三人称单数:blackens
1 make or become black or very dark 使黑; 使变黑.
2 [Tn] say unpleasant things about (sth) 诋毁, 诽谤（某事物）
*blacken a person's character/name 诋毁某人的品格[名声].
[I and T]
to become black, or make something black
The thunder became louder and the sky blackened.
blacken sb's name/character/reputation
to say unpleasant things about someone in order to make other people have a bad opinion of them