elevation
Geometrically, an elevation is a horizontal orthographic projection a building on to a vertical plane, the vertical plane normally being parallel to one side of the building. Architects also use the word elevation as a synonym for façade, so the "north elevation" is the north-facing wall of the building.
First 10 image search results of elevation architecture
Jargon of the day: negative/positive space
See: Solid/Void
