"dominion" in the noun sense
1. dominion, rule
dominance or power through legal authority
"France held undisputed dominion over vast areas of Africa"
"the rule of Caesar"
2. district, territory, territorial dominion, dominion
a region marked off for administrative or other purposes
3. Dominion
one of the self-governing nations in the British Commonwealth
Source: WordNet® (An amazing lexical database of English)
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