(1)〈美〉黑杰克棒
一种装有弹性手柄，包有皮革，皮革上缀有铅块或其它金属的短大头棒，为罪犯常用的伤人武器，有时警察也用。

(2)黑杰克牌戏
也称21点〔vingt-et-un〕。通常用于赌博。

• common stock
• common tenancy
• common thief
• common traverse
• common trust fund
• commonty
• common vouchee
• common wall
• commonweal
• commonwealth
• Commonwealth and Protectorate
• commonwealth citizen
• Commonwealth court
• commonwealth preference
• Commonwealth Secretariat
• common without stint
• commorancy
• commorant
• commorientes
• commorth
• commote
• commotion
• commun
• communal courts
• commune