Definition of "vestibule" in English

noun

1. (architecture) A small entrance hall, antechamber, passage, or room between the outer door and the main hall, lobby, or interior of a building.

2. (anatomy) Any of a number of body cavities or channels, serving as or resembling an entrance to another bodily space.

verb

1. (transitive) To furnish with a vestibule or vestibules.