English

Definition of big business noun from the Oxford Advanced Learner's Dictionary

     

    big business

     noun
    noun
    BrE
     
    ; NAmE
     
    [uncountable]
     
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  1. 1large companies that have a lot of power, considered as a group links between politics and big business
  2. 2something that has become important because people are willing to spend a lot of money on it Health and fitness have become big business.
See the Oxford Advanced American Dictionary entry: big business