Definition of cohort noun from the Oxford Advanced American Dictionary

     

    cohort

     noun
    noun
    NAmE//ˈkoʊhɔrt//
     
     
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  1. 1(technology) a group of people who share a common feature or aspect of behavior the 1999 birth cohort (= all those born in 1999)
  2. 2(disapproving) a member of a group of people who support another person Robinson and his cohorts were soon ejected from the meeting.
See the Oxford Advanced Learner's Dictionary entry: cohort