n.

1. 栗子[C]
2. 【植】栗樹[C]
3. 栗木[U]
4. 【植】七葉樹
5. 栗色[U]
6. 栗色馬[C]
7. 馬腿內側的角質胼胝
8. 【口】陳腐的笑話（或故事等）；陳詞濫調

a.

1. 栗色的

n.

1. a glossy hard brown nut which develops within a bristly case and can be roasted and eaten.
2. (also chestnut tree, sweet chestnut, or Spanish chestnut) the large tree that produces chestnuts. [Castanea sativa.]
   ▸used in names of similar nuts, and trees and plants that produce them, e.g. horse chestnut, water chestnut.
3. a deep reddish-brown colour.
4. a horse of a reddish-brown or yellowish-brown colour.
5. a small horny patch on the inside of a horse's leg.