n.

1. 有意的破壞（或暴行）；騷亂
   When the rebel army invaded the city, there was mayhem everywhere.

   當反抗軍進城時，到處是一片騷亂。

   The city sank into complete mayhem after it was ravaged by the invading soldiers.

   遭軍隊蹂躪之後，這座城市陷入了完全的混亂。

2. 【律】重傷罪（傷害罪之一等級）
   He was charged with mayhem in this assault case.

   在這次攻擊事件中，他被以重傷害罪起訴。

n.

1. violent or damaging disorder; chaos.
2. Law,  historical the crime of maliciously injuring someone, originally so as to render them defenceless.