Definition of dominion

< dominie

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do·min·ion    (d-mnyn) KEY 

NOUN:

1. Control or the exercise of control; sovereignty: "The devil . . . has their souls in his possession, and under his dominion" (Jonathan Edwards).
2. A territory or sphere of influence or control; a realm.
3. often Dominion Abbr. Dom. One of the self-governing nations within the British Commonwealth.
4. dominions Christianity See domination.

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ETYMOLOGY:
Middle English dominioun, from Old French dominion, from Medieval Latin domini, dominin-, from Latin dominium, property, from dominus, lord; see dem- in Indo-European roots