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declare war on



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Idioms and Phrases

Also, declare war against . Announce one's intent to suppress or eradicate something or someone. For example, The police have declared war on drug dealing in the neighborhood , or Several gangs have declared war against each other . This usage transfers the literal sense of the term, “to state formally one's intention to carry on hostilities against another power,” to a somewhat smaller scale.

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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.

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