1. organizing or uniting (states, regions, or groups) into a federal system of government
Usage: British spelling; American equivalent is 'federalizing'; present participle or gerund form of 'federalise'
2. bringing (an organization, institution, or system) under federal control or authority
Usage: British spelling; American equivalent is 'federalizing'

Examples

• The government is federalising the education system to ensure consistent standards across all regions.
• Federalising the independent states required extensive negotiation and compromise.
• The proposal for federalising healthcare services faced opposition from local authorities.
• By federalising the police force, the nation aimed to improve coordination and efficiency.
• The process of federalising the union took several years to complete.
• Critics argued that federalising power would reduce local autonomy.