noun, slang ·Uncommon ·College level

Definitions

Noun

1. 1
   A bone that forms a knuckle in the human hand, in an animal's paw or any bone that forms a similar bump.
2. 2
   Such a bone once used in knucklebones and other children's games of chance.
3. 3
   A die. slang

Etymology

From knuckle + bone.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.