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July 1, observed in Canada in commemoration of the formation of the Dominion in 1867.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(in Canada) July 1, the anniversary of the day in 1867 when Canada became the first British colony to receive dominion status: a bank holiday. Former name: Dominion Day
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
a Canadian national holiday, July 1, celebrating the formation of the Dominion on July 1, 1867.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.