Definition of chestnut noun from the Oxford Advanced Learner's Dictionary



    BrE BrE//ˈtʃesnʌt//
    ; NAmE NAmE//ˈtʃesnʌt//
    Domesticated mammals, Plants
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  1. 1 (also chestnut tree) [countable] a large tree with spreading branches, that produces smooth brown nuts inside cases which are covered with spikes. There are several types of chestnut tree. see also horse chestnut See related entries: Plants
  2. 2 [countable] a smooth brown nut of a chestnut tree, some types of which can be eaten roast chestnuts The dessert was a rich mixture of chestnut purée and cream. see also water chestnut compare conker
  3. 3 [uncountable] a deep reddish-brown colour
  4. 4[countable] a horse of a reddish-brown colour See related entries: Domesticated mammals
  5. 5old chestnut [countable] (informal) an old joke or story that has been told so many times that it is no longer amusing or interesting
  6. Word Originearly 16th cent.: from Old English chesten (from Old French chastaine, via Latin from Greek kastanea) + nut.
See the Oxford Advanced American Dictionary entry: chestnut