What is difference between a centralist and a federalist?

A centralist advocates for a strong central government that holds most of the political power, often prioritizing national unity over regional differences. In contrast, a federalist supports a system of governance that divides power between a central authority and regional or state governments, allowing for local autonomy and representation. Centralists typically favor uniform policies across the nation, while federalists emphasize the importance of local governance and the ability of regions to address their unique needs.