American English

Definition of caliber noun from the Oxford Advanced American Dictionary

     

    caliber

     noun
    (also calibre) noun
    NAmE//ˈkæləbər//
     
     
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  1. 1 [uncountable] the quality of something, especially a person's ability synonym standard He was impressed by the high caliber of applicants for the job. The company needs more people of your caliber.
  2. 2 [countable] the width of the inside of a tube or gun; the width of a bullet a .22 caliber bullet a high caliber weapon