Entry / Foyer
type: Concept
in scheme: space
notation: space.entry
definition: The threshold volume immediately inside the front door, where arrival happens; the circulation beyond it is `hallway`, and the enclosed airlock in front of it is `vestibule`.
alternative label: foyer
alternative label: entrance hall
alternative label: vestibule
hidden label: vestibule
semantic id: room.entry
source basis: vendored
source: materialgraph ms_room + materialsinuse PROGRAM_SPACE_TYPES
date: 2026-08-21
scope note: `vestibule` was an altLabel here in the 0.2 draft and is now a term of its own, because the spine carries it separately and the two are genuinely different rooms: a vestibule has two sets of doors and an entry does not. The word is kept in `seenAs` because upstream data really does use it to mean this.