Homonym: central (Core)
The term "central" refers to something that is located at the middle point or is of primary importance within a particular context. For example, in a city, the central business district is where most commercial activities occur, making it a key area for economic growth.
In various fields, "central" can describe concepts that are fundamental to understanding a subject. In mathematics, a central angle is formed at the center of a circle, while in discussions about governance, a central government holds the main authority over a nation, coordinating policies and regulations.