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British Dictionary definitions for attack ad

attack ad

noun
  1. a public notice, such as a printed display or a short film on television, in which a political party criticizes or abuses an opponent
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