Chestnut can mean a few related things:
- A nut: The edible seed of trees in the genus Castanea, usually enclosed in a spiny husk. These nuts are typically roasted or boiled and eaten as a snack or ingredient.
- The tree or wood: The chestnut tree or its wood, which is valued for hardness and grain.
- A color: A dark reddish-brown shade similar to the shell of a chestnut.
- In figurative usage: An old or familiar idea, joke, or piece of information that’s repeated or overused (often phrased as an “old chestnut”).
If you’d like, I can tailor this to a specific sense (e.g., culinary, botany, design/color) or provide examples.
