Meaning of blackjack

Definition of blackjack

(noun) a common scrubby deciduous tree of central and southeastern United States having dark bark and broad three-lobed (club-shaped) leaves; tends to form dense thickets
a piece of metal covered by leather with a flexible handle; used for hitting people
a flag usually bearing a white skull and crossbones on a black background; indicates a pirate ship
a gambling game using cards; the object is to hold cards having a higher count than those dealt to the banker up to but not exceeding 21
(verb) exert pressure on someone through threats

Other information on blackjack

WIKIPEDIA results for blackjack
Amazon results for blackjack