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

     

    oak

     noun
    noun
    BrE BrE//əʊk//
     
    ; NAmE NAmE//oʊk//
     
    Plants
     
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  1. 1 [countable, uncountable] (also oak tree [countable]) a large tree that produces small nuts called acorns. Oaks are common in northern countries and can live to be hundreds of years old. a gnarled old oak tree forests of oak and pine see also poison oak See related entries: Plants
  2. 2 [uncountable] the hard wood of the oak tree oak beams This table is made of solid oak.
  3. Word Origin Old English āc, of Germanic origin; related to Dutch eik and German Eiche.Extra examples The oaks were planted in the 16th century. a solid oak table chairs of polished oakIdioms
    great/tall oaks from little acorns grow
     
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    (saying) something large and successful often begins in a very small way
See the Oxford Advanced American Dictionary entry: oak

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