blackjack
noun uk/ˈblæk.dʒæk/ us/ˈblæk.dʒæk/
(CARD GAME)
[ U ] (UK also pontoon)二十一点纸牌赌戏
a type of card game played for money
(WEAPON)
[ C ] US (UK cosh)（包革）金属棍棒;金属警棍
a short, thick metal stick covered in rubber or leather, used to hit people with