A state formed by the union of multiple lesser states.(noun)
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Use "superstate" in a sentence
"Please note my avoidance of the word superstate that seems to offend so many people."
"But as Goldstein's book explains, each superstate is so strong it cannot be defeated even when faced with the combined forces of the other two powers."
"The present situation is being grasped at as a justification for this superstate, which is wholly unnecessary."