noun

• A union or alliance of states or political organizations.
• The act of forming an alliance.
• In Canada, the federal union of provinces and territories which formed Canada, beginning with New Brunswick, Nova Scotia, Ontario, and Quebec, and later including all the others.
• In Canada, the date of Confederation; 1 July 1867.
• In Newfoundland, the political union of Newfoundland with Canada.
• In Newfoundland, the date of Confederation; 31 March 1949.