English word origin

Etymology of 911

2 source sectionsExtended source reportWiktionary original ↗

In this entry · 2 source sections

The source etymologies

Wiktionary via Kaikki / Wiktextract

The source reports below are imported and unreviewed by *SET-U. Separate numbered origins and differing source variants are preserved; agreement within this extraction is not independent corroboration.

Source etymology 1

Original entry ↗

verb

To call emergency services.

noun

Emergency services; emergency service personnel. · An emergency phone call. · An emergency.

name

The telephone number for emergency services in the United States, Canada, Mexico, Belize, Costa Rica, Argentina, Uruguay, Ecuador, Saudi Arabia, Egypt, Jordan, Liberia, Ethiopia, the Philippines, Anguilla, Palau, and Tonga.

Selected source glosses provide context, not a complete modern definition inventory

Chosen by the United States in the 1960s in place of the older British 999 number as a better way to avoid accidental calls from push-button telephones. It is officially pronounced "nine-one-one" and not "nine-eleven;" the latter refers to the September 11, 2001 attacks in New York and Washington, but the pronunciation "nine-one-one" for the phone number was universal even prior to the attacks. 9/11 is universally distinguished from 911 to refer the September 11 attacks. Officially written as 9-1-1 in regulations and materials from the United States National Emergency Number Association and Federal Communications Commission, which is also advocated by some media style guides.

Inspect preserved source fields

Raw extraction fields are retained for auditing. Their order does not establish ancestry.

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      "999"
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      "New York"
    ],
    [
      "Washington",
      "Washington, D.C."
    ],
    [
      "9-1-1",
      "9-1-1"
    ],
    [
      "United States",
      "United States"
    ],
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      "style guide",
      "style guide"
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  "references": [],
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      "pos": "verb",
      "glosses": [
        "To call emergency services."
      ],
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        "Canada",
        "Philippines",
        "US",
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        "Emergency services; emergency service personnel.",
        "An emergency phone call.",
        "An emergency."
      ],
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Source etymology 2

Original entry ↗

name

A prominent family of sports cars manufactured by Porsche.

Selected source glosses provide context, not a complete modern definition inventory

Selected so as to be able to continue using most of the labelling from its former name 901 after its competitor Peugeot objected that it had the legal rights to 3-digit automotive model names with a central 0 in the French market. The name 901 had been selected since it was the first version of the 6th major design project after the earlier Porsche 356, which the 911 largely replaced. The name is pronounced "nine-eleven" by analogy with German Neunelfer.

Relationships mentioned by the source

These are extracted mentions, not a timeline or a verified sequence of immediate parents.

Borrowed-form mentionNeunelferde

Inspect preserved source fields

Raw extraction fields are retained for auditing. Their order does not establish ancestry.

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Where this record stops

This page does not supply an independently verified sound-change sequence, first-use manuscript or complete family tree unless a cited analysis explicitly establishes one. Missing detail here is a limit of this record—not a claim that humanity knows nothing more.

An older meaning does not determine what a word must mean today. Follow the sources, preserve disagreements, and keep ancestry separate from interpretation.

Contribute located evidence for 911 →

Source and snapshot

Imported from Wiktionary contributors; extracted by Tatu Ylonen / Wiktextract / Kaikki.org. Selected fields are reformatted and grouped; wording, source identity and etymology sections are retained. CC-BY-SA-4.0 applies to the imported source material.

Dump: 2026-10-01 · Extracted: 2026-10-30. These are snapshot dates, not the word’s first attestation or the page’s revision date.

Source entry and bibliography ↗Wiktionary revision history ↗Acquisition and rights ledger

Machine-source provenance

Source SHA-256: 5ff2c072f8099f2d2ce484bd6957bf179f046d2ad37bc36555edf8bb84cb5291
Import run: 73216b9a9b78ed3830994bf853103716f5a4dc57099e371e9f8fdc468facca26
Permanent entry ID: w-OTEx