dominion
//dəˈmɪn.jən//
Noun
dominionSingular
dominionsPlural
1
Supreme authority or power; sovereignty and control over a territory or people.
The empire extended its dominion over vast territories.
2
A territory or sphere of influence under the control of a ruler or government.
The empire expanded its dominion across the entire continent.
3
(historical) A self-governing territory within the British Empire or Commonwealth.
Canada was a dominion of the British Empire until 1982.