"vestibule" in the noun sense
1. anteroom, antechamber, entrance hall, hall, foyer, lobby, vestibule
a large entrance or reception room or area
2. vestibule
any of various bodily cavities leading to another cavity (as of the ear or vagina)
Source: WordNet® (An amazing lexical database of English)
Princeton University "About WordNet®."
WordNet®. Princeton University. 2010.
View WordNet® License