Definition of chestnut

  1. chestnut Noun A tree or shrub of the genus "Castanea".
  2. chestnut Noun The nut of this tree or shrub.
  3. chestnut Noun A dark, reddish-brown colour/color.
  4. chestnut Noun A reddish-brown horse.
  5. chestnut Noun The wood of a chestnut tree.
  6. chestnut Noun (Often "old chestnut") A worn-out meme; a work so often repeated as to have grown tiresome.
  7. chestnut Noun A part of a horse found on the inner leg, similar to a birthmark on a human.
  8. chestnut Adjective Of a deep reddish-brown colour, like that of a chestnut.
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