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411

American  
[fawr-wuhn-wuhn] / ˈfɔrˌwʌnˈwʌn /
Or 4-1-1
  1. a telephone number for directory information.

  2. Informal. the 411, information or knowledge, usually about an event or activity and acquired by oral communication.

    Here's the 411 on tomorrow night's party.

    Planning for Spring Break in Cabo—what's the 411?"


Etymology

Origin of 411

First recorded in 1930–35 411 for def. 1, and in 1980–85 411 for def. 2

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Presumably those who do decide to stay in room 411 are hoping that Christie’s literary genius might somehow rub off.

From The Wall Street Journal

Gold is up 0.11% at $4,411 in early afternoon trading, potentially snapping what would have been a fifth straight day of declines.

From Barron's

It reached 411,082 vehicle deliveries in 2025 -- surpassing a goal of 350,000 -- to notch 106.1 billion yuan in revenue from its business segment covering smart EVs and AI.

From Barron's

The analysis included 123,411 people who had received at least one dose of the Shingrix or Zostavax vaccine and an equal number who had not been vaccinated.

From Science Daily

The U.S. government would not be tasked with providing reinsurance for all oil tankers trapped in the region — there were 411 of them as of Friday, some of them Iranian or Iran-linked ships, according to Kpler, a global trade data analytics firm.

From MarketWatch