Sovereignty is authority to govern a state or a state that is self governing.
a state powerful enough to influence events throughout the world
The capacity of a system or machine to operate:
Find another word for world-power. In this page you can discover 9 synonyms, antonyms, idiomatic expressions, and related words for world-power, like: dominion, imperium, lordship, sovereignty, superpower, powerful nation, major power, great-power and power.