Center (noun)

1. A point that is equidistant from all points on the circumference of a circle.
2. A place or thing that is central to an area or object.
3. A place or institution providing a particular service or resources.

Origin:

From middle english centre, from old french centre, from latin centrum, from ancient greek κέντρον (kéntron).

Examples:

1. The city's cultural center was a hub of activity.
2. The center of the earth is its core.
3. The shopping center was bustling with activity on the weekends.
4. The center of the plate was occupied by the main dish.
5. The hurricane's eye was at the center of the storm.