Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary


noun knuck·le·bone \ˈnək-əl-ˌbōn\

Definition of knucklebone

  1. 1 :  a bone (as a metatarsus or metacarpus of a sheep) used in games and formerly in divination

  2. 2 plural but sing in constr :  a game played with knucklebones or jacks

Learn More about knucklebone

Seen and Heard

What made you want to look up knucklebone? Please tell us where you read or heard it (including the quote, if possible).