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

     

    rookie

     noun
    noun
    BrE BrE//ˈrʊki//
     
    ; NAmE NAmE//ˈrʊki//
     
    (informal)
     
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  1. 1(especially North American English) a person who has just started a job or an activity and has very little experience
  2. 2(North American English) a member of a sports team in his or her first full year of playing that sport
  3. Word Origin late 19th cent.: perhaps an alteration of recruit, influenced by rook ‘black bird’.Extra examples Derek Jeter was voted American League Rookie of the Year in 1996. The transition from rookie to fighter pilot starts with selection day. a rookie quarterback
See the Oxford Advanced American Dictionary entry: rookie