杀手锏

Traditional form:

殺手鐧

Pinyin (reading):

shāshǒujiǎn

Definitions:

• (fig.) trump card

Characters:

• 杀 - to kill, to murder, to slaughter; to hurt
• 手 - hand
• 锏 - rapier; mace

Traditional characters:

• 殺 - to kill, to murder, to slaughter; to hurt
• 手 - hand