terrorist attack

Noun
  1. A surprise attack involving the deliberate use of violence against civilians in the hope of attaining political or religious aims (synset 101249244)
    is a type of:
    • act of terrorism, terrorism, terrorist act - the calculated use of violence (or the threat of violence) against civilians in order to attain goals that are political or religious or ideological in nature; this is done through intimidation or coercion or instilling fear
    • coup de main, surprise attack - an attack without warning
    specific instances: 9-11, 9/11, sep 11, sept. 11, september 11 - the day in 2001 when Arab suicide bombers hijacked United States airliners and used them as bombs

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