1. [ noun ] plaything consisting of small 6-pointed metal pieces that are used (along with a ball) to play the game of jacks
Synonyms: jackstones
Related terms: plaything
2. [ noun ] Last name, frequency rank in the U.S. is 3796
3. [ noun ] (games) a game in which jackstones are thrown and picked up in various groups between bounces of a small rubber ball
Synonyms: knucklebones jackstones
Related terms: child's_game
Similar spelling:   jack