Centred means placed exactly in the middle. Centred on the page, the design is centred, perfectly centred.
This is the British spelling; American English writes centered. Centred on means having something as its main focus: a campaign centred on housing — and careful writers prefer centred on to centred around, since a centre cannot be around anything. Of a person, centred means calm and self-possessed, which comes from meditation vocabulary. Note self-centred, which means selfish and is the opposite in tone.
1adjectivecentredPlaced exactly in the middle.
“The heading is centred and everything under it is not.”
synonyms: centered
2adjectivemainHaving something as its main focus.
“The whole campaign was centred on one street.”
centred is a position in the middle.
Also accepted in games: centered
Practised in Light & Shadow, Shapes & Lines