Final answer:
A centralized supreme form of government is referred to as a unitary government.
Step-by-step explanation:
Centralized Supreme Form of Government
A centralized supreme form of government is referred to as a unitary government. In a unitary system, power is concentrated in a central government, which holds authority over subordinate governments or local units.
For example, in the United Kingdom, the British Parliament has supreme authority over the constituent countries like England, Scotland, Wales, and Northern Ireland. The central government can make decisions that affect the entire country without needing the approval of local governments.
Learn more about Unitary government