Real Dictionary

centre
A centre is a building where people have meetings, take part in a particular activity, or get help of some kind.
If someone or something is the centre of attention or interest, people are giving them a lot of attention.
If something or someone is at the centre of a situation, they are the most important thing or person involved.
In politics, the centre refers to groups and their beliefs, when they are considered to be neither left-wing nor right-wing.
The centre of a town or city is the part where there are the most shops and businesses and where a lot of people come from other areas to work or shop.
The centre of something is the middle of it.
countable noun: If an area or town is a centre for an industry or activity, that industry or activity is very important there.
verb: If an industry or event is centred in a place, or if it centres there, it takes place to the greatest extent there.
verb: If something centres or is centred on a particular thing or person, that thing or person is the main subject of attention.
verb: If you centre something, you move it so that it is at the centre of something else.

Centre in American English
center
metropolitan region of central France, southwest of Paris: 15,116 sq mi (39,150 sq km); pop. 2,371,000; chief city, Orléans

centre in British English
noun
noun: the midpoint of any line or figure, esp the point within a circle or sphere that is equidistant from any point on the circumference or surface
verb: to move towards, mark, put, or be at a centre