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nine-eleven

noun

  1. the 11th of September 2001, the day on which the twin towers of the World Trade Center in New York were flown into and destroyed by aeroplanes hijacked by Islamic fundamentalists Also calledSeptember eleven
“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


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Word History and Origins

Origin of nine-eleven1

C21: from the US custom of expressing dates in figures, the day of the month following the number of the month
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Example Sentences

The film had premiered at Cannes in May 2001, almost a decade after Somalia, three months before nine eleven and everything after.

Miss Violet Mordaunt traveled to London this morning by the nine-eleven train.

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