From Longman Dictionary of Contemporary Englishblackjackblack‧jack /ˈblækdʒæk/ noun 1 [uncountable]DGC a card game, usually played for money, in which you try to get as close to 21 points as possible2 [countable] a weapon like a stick covered with leather, used to hit people
Examples from the Corpus
blackjack• Most people like the slots or the $ 5 blackjack tables.• After struggling through umpteen games of blackjack, I would taxi home and sleep till 8 a.m. when the boys awoke.• Chandeliers dangle over blackjack tables, the only break in the acoustic-tile ceiling.• I gam-bled it all away, playing blackjack while sitting at the bar with the guys that came in.• I started playing blackjack, and I was winning all over the place-won eight hundred on one hand.• But he settled for the blackjack, and charged it to Visa.• One of the croupiers, a blonde girl, beckoned him to join the blackjack table.• He eased his hand into his trouser pocket, and slipped the blackjack loop over his wrist.Origin blackjack 1. (1900-2000) black + → JACK122. (1800-1900) black + jack “tool” ((16-20 centuries)) 