blacken
🇺🇸
/ˈblækən/
🇬🇧
/ˈblækən/
To change the color of something to black or to become black in color.
The berries can blacken when they are cooked for too long.
ベリーを長時間煮すぎると黒くなります。
To damage someone's reputation by saying bad things about them.
She tried to blacken his reputation by spreading false rumors.
彼女は偽りの噂を広めることで彼の名声を汚そうとしました。