Definitions of blackjack:

  • noun:   a gambling game using cards; the object is to hold cards having a higher count than those dealt to the bank up to but not exceeding 21
  • noun:   a piece of metal covered by leather with a flexible handle; used for hitting people
  • noun:   a common scrubby deciduous tree of central and southeastern United States having dark bark and broad 3-lobed (club-shaped) leaves; tends to form dense thickets
  • verb:   exert pressure on someone through threats