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Definition of mine noun from the Oxford Advanced American Dictionary

     

    mine

     noun
    noun
    NAmE//maɪn//
     
     
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  1. 1a deep hole or holes under the ground where minerals such as coal, gold, etc. are dug a copper/diamond mine see coal mine, gold mine, mining compare pit, quarry
  2. 2a type of bomb that is hidden under the ground or in the ocean and that explodes when someone or something touches it see land mine
  3. Idioms
    a mine of information (about/on somebody/something)
     
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    a person, book, etc. that can give you a lot of information on a particular subject
See mine in the Oxford Advanced Learner's Dictionary