act of war
an act of aggression by a country against another with which it is nominally at peace.
Civil Rights Act of 1964Read more in this article about some frequently asked questions and fun facts related to our definitions.
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British Dictionary definitions for act of war
act of war
an aggressive act, usually employing military force, which constitutes an immediate threat to peace
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012