Level 5 · word 10,331 of 20,000

blacken

/ˈblækən/ American
  • v. 使变黑, 诋毁
Definition
  • v. to make or become black, or to damage someone's reputation
Example
The fire began to blacken the walls of the old house.
大火开始把这栋老房子的墙壁熏黑。