Vestibule – A small entrance room between the outer door and the main hall or building
Note: The difference between vestibule and porch is that a porch leads to the front door but a vestibule is a room once you have passed through the front door but before the main hallway.
All the vests in the blue mule's (vestibule) collection were kept in the room just inside the entranceway.
Examples of vestibule in a sentence
I kept asking the postal company to leave parcels in the vestibule, but they never did.
The vestibule in my parents house is so big, you could almost live in it.
We keep the dog in the vestibule when we go out, or he'll destroy the sofa.