Colloquial Variant guide

911

name · noun · verb · 6 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • General-American: /ˌnaɪ̯n wən ˈwən/
  • rhymes with -ən
  • General-American: /ˈnaɪn əˌlɛvən/

1

name

Meaning 1

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.

Definition source: English Wiktionary via Wiktextract

Examples

  • When you call 911 in the United States, a local dispatcher usually answers the phone with "911" or "911. What's your emergency?"
  • After witnessing what was possibly a robbery, she called 911.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

name

Meaning 2

A prominent family of sports cars manufactured by Porsche.

Definition source: English Wiktionary via Wiktextract

Topics: automotive, transport, vehicles

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

Emergency services; emergency service personnel.

Definition source: English Wiktionary via Wiktextract

Usage: Belize, Canada, Philippines, US, countable, metonymically, uncountable

Qualifier: Liberia

Examples

  • 911 is sending an ambulance.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

noun

Meaning 4

An emergency phone call.

Definition source: English Wiktionary via Wiktextract

Usage: Belize, Canada, Philippines, US, colloquial, countable, metonymically, uncountable

Qualifier: Liberia

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

noun

Meaning 5

An emergency.

Definition source: English Wiktionary via Wiktextract

Usage: Belize, Canada, Philippines, US, colloquial, countable, metonymically, uncountable

Qualifier: Liberia

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

6

verb

Meaning 6

To call emergency services.

Definition source: English Wiktionary via Wiktextract

Usage: Belize, Canada, Philippines, US, colloquial

Qualifier: Liberia

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

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.

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.