1. the hard brown seeds of the horse chestnut tree
Usage: British
2. a children’s game played with horse chestnuts on strings
Usage: British

Examples

• The children collected conkers that had fallen from the tree.
• We played conkers in the schoolyard during autumn.
• She threaded a string through her conker to prepare for the game.
• The shiny brown conkers were perfect for the competition.
• His conker smashed his opponent’s in one hit.
• They gathered conkers every October for the annual tournament.