Synonyms of 'vestibule'
hallDictionary, lobby, foyerA tiled vestibule leads to an impressive staircase.
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An anteroom is a small room leading into a larger room.
I was waiting in the anteroom of a radio studio.
The foyer is the large area where people meet or wait just inside the main doors of a building such as a theatre, cinema, or hotel.
I went and waited in the foyer.
Thesaurus for vestibule from the Collins English Thesaurus
A vestibule is an enclosed area between the outside door of a building and the inside door.