Federalise means to unite or bring together different entities or regions under a central authority or government. There are various synonyms for this word, including centralize, unite, consolidate, amalgamate, integrate, organize, and standardize. These words imply a sense of bringing together smaller or disparate elements into a larger, more unified whole. The term federalise, particularly in the political context, is often used to describe the process of creating a federal system of government, where power is divided between a central authority and regional or state governments. In this sense, the synonyms for federalise can also connote a sense of creating a more efficient and effective government structure.