American English

Definition of first down noun from the Oxford Advanced American Dictionary

     

    first down

     noun
    noun
     
     
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  1. 1(in football)
  2. 2the first of a series of four downs (= chances to move the ball forward ten yards)
  3. 3the chance to start a new series of four downs because your team has succeeded in going forward ten yards
See the Oxford Advanced Learner's Dictionary entry: first down