Definition of railroad noun from the Oxford Advanced American Dictionary

      

    railroad

     noun
    noun
    NAmE//ˈreɪlroʊd//
     
     
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  1. 1 a track with rails on which trains run railroad tracks
  2. 2a system of tracks, together with the trains that run on them, and the organization and people needed to operate them This town got a lot bigger when the railroad came in the 1860s.
See the Oxford Advanced Learner's Dictionary entry: railroad