blackjack

blackjack
noun

[mass noun](chiefly N. Amer.)a gambling card game in which players try to acquire cards with a face value totalling 21 and no more
(主北美)21点（牌戏）。参见 pontoon, vingt-et-un
a widely distributed weed related to the bur-marigold, with barbed black seeds. sense 3
咸丰草，白花婆婆针，鬼针草
Bidens pilosa, family Compositae
拉丁名Bidens pilosa，菊科
(N. Amer.)a flexible lead-filled truncheon, used as a weapon
(北美)弹性灌铅棍（用作武器）
(historical)a pirates' black ensign
(史)海盗旗
(historical)a tarred-leather container used for alcoholic liquor
(史)皮酒囊