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

      

    cow

     noun
    noun
    BrE BrE//kaʊ//
     
    ; NAmE NAmE//kaʊ//
     
    Farm animals, Domesticated mammals
     
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  1. 1   a large animal kept on farms to produce milk or beef cow’s milk a herd of dairy cows (= cows kept for their milk) compare bull, calf, heifer see also cattle See related entries: Farm animals, Domesticated mammals
  2. 2 the female of the elephant, whale and some other large animals compare bull
  3. 3(slang, disapproving) an offensive word for a woman You stupid cow! That interfering old cow has never liked me.
  4. 4(Australian English, New Zealand English) an unpleasant person, thing or situation
  5. see also cash cow, sacred cow
    Word Originnoun Old English , of Germanic origin; related to Dutch koe and German Kuh, from an Indo-European root shared by Latin bos and Greek bous.Idioms (North American English, informal) to become very angry or anxious about something Don't have a cow—it's no big deal.
    till the cows come home
     
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    (informal) for a very long time; for ever You can talk till the cows come home—you’ll never make me change my mind.
See the Oxford Advanced American Dictionary entry: cow