Definition of "blackjack" []

• A leather-covered bludgeon with a short, flexible shaft or strap, used as a hand weapon. (noun)
• The blackjack oak. (noun)
• Games A card game in which the object is to accumulate cards with a higher count than that of the dealer but not exceeding 21. Also called twenty-one, vingt-et-un. (noun)
• Sphalerite. (noun)
• To hit or beat with a leather-covered bludgeon. (verb-transitive)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Interestingly, the author initially gained fame/notoriety for popularizing the team play concept in blackjack, making quite a score, getting banned in some casinos …"
• "I think you double down in blackjack when your cards are pretty good, right?"
• "Just like in blackjack, sometimes you stand on 14 instead of yelling like a fool “HIT ME!”"