a tall broad-leaved tree that produces smooth brown nuts inside spiky green cases
A giant chestnut stood at the edge of the meadow, its branches heavy with shiny brown nuts.
In autumn, the leaves of the old chestnut turned golden before falling.
✦ From Old English cisten + nut, influenced by Old French chastaigne, ultimately from Latin castanea.
the smooth, shiny brown nut of the chestnut tree that you can eat
We roasted chestnuts over the campfire and ate them while they were still warm.
Grandma added chopped chestnuts to the stuffing for extra flavor.
a deep reddish-brown colour
The painter mixed red and brown until she got the exact shade of chestnut for the roof.
His jacket was a deep chestnut that matched his boots.
reddish-brown in colour
She brushed her long chestnut hair before work.
The cabin door was painted a soft chestnut brown.
a horse with a reddish-brown coat and usually a similar-coloured mane and tail
The chestnut galloped across the field, its coat gleaming in the sun.
She chose a calm chestnut for her first riding lesson.
an old joke, story, or idea that has been repeated so often that it is no longer interesting
Please stop telling that chestnut about the talking dog—we've all heard it.
The movie relies on the old romantic chestnut of mistaken identity.