空间 is used both physically (房间空间, room space) and abstractly (发展空间, room for development; 想象空间, room for imagination). In tech: 存储空间 (storage space).
culture
QQ空间 (QQ Kōngjiān) was one of China's earliest social media platforms — like an early Facebook wall. Many Chinese millennials have nostalgic memories of it.
