Office building is a common term used to describe a workplace setting occupied by business firms or organizations. However, there are several other words that could be synonymously used to refer to the same thing. One of them is commercial complex - a large building equipped with administrative offices, retail stores, and other commercial activities. Another term could be business park, which is more of a corporate environment with several tenant office buildings in a shared area. Corporate tower is also a synonym for office building, especially when referred to a high-rise structure. Other alternatives include office complex, business center, and office block, all of which refer to the same idea of a dedicated work facility.