American English

Definition of vestibule noun from the Oxford Advanced American Dictionary

     

    vestibule

     noun
    noun
    NAmE//ˈvɛstəˌbyul//
     
     
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  1. 1(formal) an entrance hall of a large building, for example where hats and coats can be left
  2. 2 (technology) a space at the end of a car on a train that connects it with the next car
See the Oxford Advanced Learner's Dictionary entry: vestibule