Proper noun
(dated, formal) Canada
(history) Canada from 1867 to the early Cold War.
Source: en.wiktionary.orgWe may be a small community and a Half-breed community at that - but we are men, free and spirited men, and we will not allow even the Dominion of Canada to trample on our rights. Louis Riel
The British North America Act, creating the Dominion of Canada, was introduced in the House of Lords. Source: Internet