Definition Of centres
a place or group of buildings where a specified activity is concentrated.
a center for medical research
have or cause to have something as (a major concern or theme).
the case centers around the couple's adopted children
place in the middle.
to center the needle, turn the knob
the middle point of a circle or sphere, equidistant from every point on the circumference or surface.
She was so angered by this thought that she had changed forms and was halfway to the center of the circle before she realized what she was doing.
the point from which an activity or process is directed, or on which it is focused.
the city was a center of discontent