404

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English

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Etymology

From the HTTP error status code 404, meaning Not Found, returned by a web server responding to a request for a URL at which no resource exists.

Pronunciation

Adjective

404 (not comparable)

  1. (computing, slang) Not found, especially of a web page on the Internet.
    Bill was 404 all morning.

Noun

404 (plural 404s)

  1. (computing) An error indicating that a web page could not be found.
    • 2007, Cristian Darie, Jaimie Sirovich, Professional Search Engine Optimization with ASP.NET: A Developer's Guide to SEO, John Wiley & Sons, →ISBN, page 113:
      Return 404s for all deleted pages. Some search engine marketers suggest redirecting old products to semantically related products instead of 404ing. This preserves link equity, whereas a 404 does not.
  2. (Nigeria, colloquial) Dog meat.

Derived terms

Verb

404 (third-person singular simple present 404s, present participle 404ing, simple past and past participle 404ed or 404'd)

  1. (computing) To return an error indicating that a web page could not be found.
    • 2007, Cristian Darie, Jaimie Sirovich, Professional Search Engine Optimization with ASP.NET: A Developer's Guide to SEO, John Wiley & Sons, →ISBN, page 113:
      Return 404s for all deleted pages. Some search engine marketers suggest redirecting old products to semantically related products instead of 404ing. This preserves link equity, whereas a 404 does not.

References

  • RFC 2616: Hypertext Transfer Protocol – HTTP/1.1

Anagrams

Chinese

Pronunciation

Verb

404

  1. (Internet slang) (of contents on the Internet) to be censored; to be removed

French

Pronunciation

Noun

404 f (plural 404)

  1. Peugeot 404
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