vestibule
noun [ C ] uk/ˈves.tɪ.bjuːl/ us/ˈves.tə.bjuːl/
formal（搁放外套等的）门厅
a small room just inside the outer door of a public building where you can leave your coat, etc.
I'll wait for you in the vestibule. 我会在门厅等你。
US（房屋的）前厅，门廊
a small closed area on the front of a house
Synonym: porch
medical specialized（身体部位）前庭
an empty space in the body that is an entrance to a passage or another space
the nasal vestibule 鼻前庭