Definition

1. Noun:

   • A type of tree: A deciduous tree of the genus Castanea, known for producing edible nuts within a prickly bur.
   • The nut of this tree: The edible, starchy, sweet nut produced by a chestnut tree.
   • A reddish-brown color: The characteristic brown color of a chestnut nut.
   • A horse of this color: A horse with a coat of a golden brown to reddish-brown color.
   • A small callus: A hard, horny patch on the inner leg of a horse.
   • A stale joke or story: An old, repeated, and no longer amusing anecdote or joke.

2. Adjective:

   • Of a reddish-brown color: Describing hair, feathers, or other objects that are a golden brown to reddish-brown hue, similar to the nut.

Usage Examples

• Noun:

  • We roasted chestnuts over an open fire.
  • The old chestnut tree provides shade in the summer.
  • Her hair is a beautiful shade of chestnut.
  • He told the same old chestnut about his fishing trip.
  • The veterinarian checked the chestnut on the horse's leg.

• Adjective:

  • She has long, chestnut hair.
  • The chestnut mare won the race.

Advanced Usage

• "An old chestnut": A joke, story, or subject that has been repeated so often it is no longer interesting or funny.
  • His lecture about hard work is an old chestnut we've all heard before.

Variants and Related Words

• Chestnut tree (n): The tree itself, specifically of the genus .
• Chestnut wood (n): The hard, durable timber from a chestnut tree.
• Water chestnut (n): An aquatic plant with an edible corm, not botanically related to the tree chestnut.
• Chestnutty (adj, informal): Resembling or characteristic of chestnuts in color or flavor.

Synonyms

• Noun (nut): Nut.
• Noun (color): Auburn, russet, reddish-brown.
• Noun (story): Cliché, bromide, old saw.

Related Phrases

• "To pull someone's chestnuts out of the fire": To rescue someone from a difficult situation, often at risk or cost to oneself.
  • I had to pull his chestnuts out of the fire when his project failed.

Related Idioms

• "That's a chestnut!": An exclamation indicating that a story or joke is very old and overused.
  • When he started his tale, she groaned, "Oh, that's a chestnut!"

Adjective

1. (of hair or feathers) of a golden brown to reddish brown color
   • a chestnut horse
   • chestnut hair

Noun

1. a dark golden-brown or reddish-brown horse
2. a small horny callus on the inner surface of a horse's leg
3. the brown color of chestnuts
4. edible nut of any of various chestnut trees of the genus Castanea
5. any of several attractive deciduous trees yellow-brown in autumn; yield a hard wood and edible nuts in a prickly bur
6. wood of any of various chestnut trees of the genus Castanea