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

     

    working

     noun
    noun
    BrE BrE//ˈwɜːkɪŋ//
     
    ; NAmE NAmE//ˈwɜːrkɪŋ//
     
    [usually plural]
     
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  1. 1working (of something) the way in which a machine, a system, an organization, etc. works an introduction to the workings of Congress the workings of the human mind the machine’s inner workings
  2. 2the parts of a mine or quarry where coal, metal, stone, etc. is or has been dug from the ground A pump was used to remove water from the old workings.
See the Oxford Advanced American Dictionary entry: working