9-11

Từ điển WordNet v3.1 - WordNet Dictionary

noun

the day in 2001 when Arab suicide bombers hijacked United States airliners and used them as bombs
• Syn:
9/11, September 11, Sept. 11, Sep 11
• Topics:
terrorism, act of terrorism, terrorist act
• Instance Hypernyms:
terrorist attack
• Part Holonyms:
September, Sep, Sept