# September 11

> English word · Proper noun

## Definitions
1. The terrorist attacks that happened on September 11, 2001.

## Etymology
From the date, by metonymy.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/september-11