COBUILD Advanced British English Dictionaryregional note: in AM, use centered1. adjectiveIf an industry or event is centred in a place, it takes place to the greatest extent there. ⇒ The tremor was centred in the Gulf of Sirte. ⇒ ...the tremor, which was centred on the Carpathian Mountains.2. adjectiveIf you feel centred, you feel calm, confident, and in control of your emotions. ⇒ I'm trying to be more centred, and not fall apart when I go through difficult things.