９きゅう１いち１いち事じ件けん

noun

September 11 attacks; 9/11

Refers specifically to the terrorist attacks on the United States on September 11, 2001. Used in news and historical contexts.

• ９１１事じ件けんはアメリカの歴れき史しを大おおきく変かえた。

  The September 11 attacks greatly changed American history.

• 彼かれは９１１事じ件けんについてのドキュメンタリーを見みた。

  He watched a documentary about the 9/11 attacks.