11-M

proper noun

The 2004 Madrid train bombings.

Meanings

proper noun
  1. metonymicallyThe 2004 Madrid train bombings.
    1 more example

    If the events took place on March 11 (like the public information phone number 3-1-1), perhaps the metonym wouldn’t be “3/11,” since it isn’t similarly visceral. (It’s worth noting that the Madrid train bombings, which took place on March 11, are known in Spain as “11-M” due to the country’s use of the date-before-month method of date formatting.)

    2015 January 16, Rick Paulas, “The Linguistics of Tragedy”, in Pacific Standard, archived from the original on 22 Apr 2025

Origin

  1. Spanish11-M
  2. English11-M

Borrowed from Spanish 11-M, an abbreviation of 11 March.

Full word history & related roots →
Cite this entry
APA

11-M. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/11-M

MLA

“11-M.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/11-M. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “11-M,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/11-M.

Source: 11-M on Wiktionary, CC BY-SA 4.0.