Definition of Co. abbreviation from the Oxford Advanced American Dictionary

     

    Co.

     abbreviation
    abbreviation
     
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  1. 1
    NAmE//koʊ//
     
    , NAmE//ˈkʌmpəni//
     
    (business) company Pitt, Briggs & Co.
  2. 2
    NAmE//koʊ//
     
    , NAmE//ˈkʌmpəni//
     
    and co. (informal) and other members of a group of people Were Jane and co. at the party?
  3. 3(in writing) county
See the Oxford Advanced Learner's Dictionary entry: Co.