great power

large force, huge power

nations that have a great deal of power in the world of international politics

A great power is a nation or state that has the ability to exert its influence on a global scale. Great powers characteristically possess economic, military, diplomatic, and cultural strength, which may cause other, smaller nations to consider the opinions of great powers before taking actions of their own.
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Noun
1. a state powerful enough to influence events throughout the world
(synonym) world power, major power, power, superpower
(hypernym) state, nation, country, land, commonwealth, res publica, body politic