Sept. 11

Definitions of Sept. 11
  1. noun
    the day in 2001 when Arab suicide bombers hijacked United States airliners and used them as bombs
    synonyms: 9-11, 9/11, Sep 11, September 11
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    example of:
    terrorist attack
    a surprise attack involving the deliberate use of violence against civilians in the hope of attaining political or religious aims
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