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

     

    bean

     noun
    noun
    BrE BrE//biːn//
     
    ; NAmE NAmE//biːn//
     
    Vegetables, Crops
     
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  1. 1 a seed, or pod containing seeds, of a climbing plant, eaten as a vegetable. There are several types of bean and the plants that they grow on are also called beans. broad beans runner beans beans (= baked beans) on toast She grows her own broad beans. See related entries: Vegetables, Crops
  2. 2(usually in compounds) a seed from a coffee plant, or some other plants coffee/cocoa beans see also jelly bean
  3. Word Origin Old English bēan, of Germanic origin; related to Dutch boon and German Bohne.Idioms (of a person) having a lot of energy (old-fashioned, North American English, informal) something that is not worth much (British English, informal) to have no money
    not know beans about something
     
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    (North American English, informal) to know nothing about a subject I don’t know beans about making movies.
    (informal) to tell somebody something that should be kept secret or private spill the beanstell
See the Oxford Advanced American Dictionary entry: bean