1. to bring together or concentrate (power, authority, or control) in a single center or place
Usage: British spelling; American English uses 'centralizes'; third person singular present tense
2. to organize or structure (a system or institution) so that control is exercised from a central point
Usage: British spelling; American English uses 'centralizes'

Examples

• The government centralises all decision-making authority in the capital.
• The company centralises its operations to improve efficiency.
• She centralises the data from multiple departments into one database.
• The new policy centralises budget control at the national level.
• Modern technology centralises information in cloud-based systems.
• The organization centralises its resources to reduce waste.