What does 9/11 mean?

Definitions for 9/11

Here are all the possible meanings and translations of the word 9/11.

Princeton's WordNet

  1. 9/11, 9-11, September 11, Sept. 11, Sep 11(noun)



  1. 9/11(n.)

    September 11, 2001 -- the day when two airplanes hijacked by Islamic terrorists were deliberately crashed into the "twin towers" (the two 110-storey skyscrapers of the World Trade Center) in New York City, causing those buildings to collapse and much other damage in the nearby area. Another plane was crashed into the Pentagon near Washington. In total, the attacks caused nearly 3,000 deaths. This was the worst incident of terrorism inside the United States to date. The abbreviated date 9/11 is now taken to refer to that specific day and the terrorist incidents that occured that day. It is used especially in the phrase


  1. Chaldean Numerology

    The numerical value of 9/11 in Chaldean Numerology is: 0

  2. Pythagorean Numerology

    The numerical value of 9/11 in Pythagorean Numerology is: 0

Images & Illustrations of 9/11

  1. 9/119/119/11

Translations for 9/11

From our Multilingual Translation Dictionary

Get even more translations for 9/11 »


Find a translation for the 9/11 definition in other languages:

Select another language:

Discuss these 9/11 definitions with the community:

Word of the Day


Please enter your email address:     


Use the citation below to add this definition to your bibliography:


"9/11." Definitions.net. STANDS4 LLC, 2018. Web. 21 Feb. 2018. <https://www.definitions.net/definition/9/11>.

Are we missing a good definition for 9/11? Don't keep it to yourself...

Nearby & related entries:

Alternative searches for 9/11:

Thanks for your vote! We truly appreciate your support.