What does dominion mean?
Dominion refers to sovereign power or the act of ruling—the supreme authority one ruler or state holds over lands, peoples, or things. It can denote the abstract right to govern ('the dominion of law') or the concrete territory so governed, as when Canada was styled 'the Dominion of Canada' after confederation in 1867. The word carries a formal, weighty tone and appears most often in historical writing, legal discourse, political commentary, and religious texts—most famously in Genesis, where humanity is granted 'dominion' over the animals. Its connotations are those of command and supremacy: to exercise dominion is not merely to influence but to reign. Related words like dominate, dominant, and domain share its Latin root, but dominion retains a distinctly imperial, authoritative flavor that makes it valuable whenever ordinary words like 'control' feel too weak.
Sovereign power or control; the authority to rule or govern.
"Rome held undisputed dominion over the Mediterranean world for centuries."
Frequently followed by 'over'.
A territory or realm under sovereign rule; historically, a self-governing territory of the British Commonwealth, such as the Dominion of Canada.
"New Zealand became a Dominion in 1907, gaining greater autonomy within the British Empire."
The plural typically refers either to multiple territories under a single ruler's sway or to the various British Dominions (Canada, Australia, New Zealand, etc.). In theological usage, 'Dominions' can also denote a rank of angels.
"The emperor's dominions stretched from the Atlantic to the Danube."
Canada's official title was 'the Dominion of Canada' — a name chosen in part from Psalm 72: 'He shall have dominion also from sea to sea.'
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of dominion
Dominion comes from Latin dominium, meaning 'lordship' or 'ownership', derived from dominus, 'lord or master', itself related to domus, 'house'. The word entered English through Old French in the medieval period, carrying senses of lordly authority and territorial rule. Cognates and relatives include dominate, domain, domicile, and domestic, all tracing back to the same root concerning household mastery and ownership.
How dominion is actually used
Formal and somewhat elevated in register; common in historical, legal, religious, and literary contexts rather than everyday conversation. The phrase 'dominion over' typically takes an object of land, creatures, or people. The Commonwealth sense is now largely historical, though 'Dominion Day' was long used for what is now Canada Day.
Easily confused with dominion
A domain is simply a sphere of knowledge, activity, or ownership, whereas dominion emphasizes sovereign ruling power or the territory actually governed.