1. to organize or unite (states, regions, or groups) into a federal system of government
Usage: chiefly British spelling; American English uses 'federalize'; transitive verb
2. to bring (a function or service) under federal control or authority
Usage: chiefly British spelling; American English uses 'federalize'; transitive verb

Examples

• The proposal would federalise healthcare across all provinces.
• Several independent nations agreed to federalise their military forces.
• The government sought to federalise education standards nationwide.
• They decided to federalise the regional police departments under one authority.
• The treaty aimed to federalise the member states into a stronger union.
• Federalising the system required constitutional amendments.