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Sept. 11

Sept. 11

18 4.4
A day in 2001 when terrorists attacked New York and Washington
  • noun
  • /sɛpt ˈɛlɛvən/
translation icon : 11 de septiembre de 2001
  • The influence of September 11 on global politics has been profound and lasting.
  • Sept. 11, 2001
  • September 11 attacks
  • events of Sept. 11

Examples

  • The tragic events of Sept. 11, 2001, have made a tremendous impact on civil aviation.

    Academic text (2001)
  • Before September 11, trade was the main form of cooperation between the United States and China.

    Academic text (2003)
  • Since the events of September 11, we have had more training than ever before in public health preparedness.

    Academic text (2006)
  • Our response to the September 11 attacks has proved even more momentous than it seemed at the time.

    Academic text (2007)
  • To some extent, the programs are also part of the administration's response to the September 11, 2001, terrorist attacks.

    Academic text (2003)
  • Initially, the scale of events on September 11 overextended the abilities of health departments and even federal environmental managers.

    Academic text (2003)
  • The United States' obsession with security after September 11 is understandable and legitimate.

    Academic text (2007)
  • One week after the September 11, 2001, attacks, Congress adopted an Authorization for Use of Military Force (2001 AUMF).

    Academic text (2018)
  • The tragic events of September 11 forever changed the way we think about national security.

  • In remembrance of those lost on September 11, many communities hold memorial services each year.

Synonyms

5 3.4

Terrorist attacks in the United States on September 11, 2001 using hijacked planes

focuses on the date itself instead of highlighting the violent acts
September 11
vsSept. 11
3 3.8

A day in 2001 when terrorists attacked the United States, destroying the World Trade Center and damaging the Pentagon

is written as a short abbreviated date form used in text
9/11
vsSept. 11
1 4.4

Terrorist attacks on September 11 2001 in the US when hijacked planes hit the World Trade Center and Pentagon

is the abbreviated month form often used as a calendar style date
9-11
vsSept. 11
1 3.5

Terrorist attacks on September 11, 2001 in the United States when hijacked planes hit important buildings

gives precise sites naming primary buildings struck on that day
event of 9/11
vsSept. 11
1 4.6

Terrorist attacks in the United States on September 11, 2001 that killed many people and changed world politics

focuses on the single day's coordinated strikes and physical damage
Sep 11
vsSept. 11
4.4

The day when terrorists used hijacked planes to attack the United States in 2001

is the same reference but written with a dot after the month abbreviation

Surface Forms

Sept. 11 singular
September 11 singular

Morphology

Sept. + XI

Formally the phrase is compositionally month + day, so a learner who knows 'Sept.' (September) and '11' will recognize it as the date September 11. However, the conventionalized reference to the 2001 terrorist attacks is a culturally specific, non-compositional sense that cannot be derived from the constituents alone and requires prior world knowledge.

Etymology

Sept. 11 comes from the date September 11, 2001, when planned terrorist attacks used passenger planes to destroy the World Trade Center towers in New York and to hit the Pentagon. Because this day changed many people's lives and the world, Sept. 11 now usually means 'the attacks of that day'.