Yes, centres is a Scrabble word!

Verb

1. Move into the center

2. Direct one's attention on something

Noun

1. A low-lying region in central France

2. An area that is approximately central within some larger region

3. A point equidistant from the ends of a line or the extremities of a figure

4. A place where some particular activity is concentrated

5. The sweet central portion of a piece of candy that is enclosed in chocolate or some other covering

6. The choicest or most essential or most vital part of some idea or experience

7. The object upon which interest and attention focuses

8. A cluster of nerve cells governing a specific bodily process

9. A building dedicated to a particular activity