Definition of blackjack

noun (n)

• 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 (noun.plant)

  Synonym: blackjack oak, jack oak, quercus marilandica
  

  source: wordnet30
• a piece of metal covered by leather with a flexible handle; used for hitting people (noun.artifact)

  Synonym: cosh, sap
  

  source: wordnet30
• a flag usually bearing a white skull and crossbones on a black background; indicates a pirate ship (noun.artifact)

  Synonym: black flag, jolly roger, pirate flag
  

  source: wordnet30
• 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 (noun.act)

  Synonym: twenty-one, vingt-et-un
  

  source: wordnet30
• A name given by English miners to sphalerite, or zinc blende; -- called also false galena. See Blende. (noun)

  source: webster1913

verb (v)

• exert pressure on someone through threats (verb.social)

  Synonym: blackmail, pressure
  

  source: wordnet30

Visual Synonyms (Thesaurus)

Explore blackjack in VisualSynonyms.com