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

      

    dozen

     noun,determiner
    noun, determiner
    BrE BrE//ˈdʌzn//
     
    ; NAmE NAmE//ˈdʌzn//
     
    (pl. dozen)
     
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  1. 1  [countable] (abbreviation doz.) a group of twelve of the same thing Give me a dozen, please. two dozen eggs three dozen red roses see also baker’s dozen
  2. 2  [countable] a group of approximately twelve people or things several dozen/a few dozen people The company employs no more than a couple of dozen people. Only about half a dozen people turned up. There was only space for a half-dozen tables.
  3. 3  dozens [plural] (informal) a lot of people or things They arrived in dozens (= in large numbers). dozen of something I've been there dozens of times.
  4. Word Origin Middle English: from Old French dozeine, based on Latin duodecim ‘twelve’.Idioms
    it’s six of one and half a dozen of the other
     
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    (saying) used to say that there is not much real difference between two possible choices
    talk, etc. nineteen to the dozen
     
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    (British English, informal) to talk, etc. without stopping She was chatting away, nineteen to the dozen.
    two/ten a penny(British English)(North American English a dime a dozen)
     
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    very common and therefore not valuable Teachers of history are ten a penny.
See the Oxford Advanced American Dictionary entry: dozen