the.com/building

means A built structure with walls and a roof, made to shelter people, activities, or things inside it.

from From the verb 'build,' traced back to Old English 'byldan,' itself rooted in 'bold' meaning house or dwelling — part of a old Germanic family of words tied to living and settling in one place. The '-ing' turns the act of building into the thing built, a shift English makes constantly (a painting, a drawing, a building).