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Noun: blackjack  'blak,jak
  1. 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
    - twenty-one, vingt-et-un, pontoon [Brit]
  2. 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
    - blackjack oak, jack oak, Quercus marilandica
  3. [N. Amer] A piece of metal covered by leather with a flexible handle; used for hitting people
    - cosh [Brit, informal], sap [N. Amer, informal]
  4. A flag usually bearing a white skull and crossbones on a black background; indicates a pirate ship
    - black flag, pirate flag, Jolly Roger
Verb: blackjack  'blak,jak
  1. Exert pressure on someone through threats
    - blackmail, pressure

Derived forms: blackjacking, blackjacks, blackjacked

Type of: act upon, bludgeon, card game, cards, flag, influence, scrub oak, work

Encyclopedia: Blackjack, Texas