404

English

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

• (UK) IPA^(key): /ˈfɔːɹəʊˌfɔː(ɹ)/

• Audio (General Australian):

  (file)

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

• 404 page
• soft 404

 

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.

Related terms

• four oh four

References

• RFC 2616: Hypertext Transfer Protocol – HTTP/1.1

Anagrams

• 0-4-4, 440, 4-4-0

Chinese

Pronunciation

• Mandarin

  (Pinyin): sìlíngsì

  (Zhuyin): ㄙˋ ㄌㄧㄥˊ ㄙˋ

---

• Mandarin
  • (Standard Chinese)⁺
    • Hanyu Pinyin: sìlíngsì
    • Zhuyin: ㄙˋ ㄌㄧㄥˊ ㄙˋ
    • Tongyong Pinyin: sìhlíngsìh
    • Wade–Giles: ssŭ⁴-ling²-ssŭ⁴
    • Yale: sz̀-líng-sz̀
    • Gwoyeu Romatzyh: syhlingsyh
    • Palladius: сылинсы (sylinsy)
    • Sinological IPA ^(key): /sz̩⁵¹ liŋ³⁵ sz̩⁵¹/

Verb

404

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

French

Pronunciation

• IPA^(key): /ka.tʁə.sɑ̃.katʁ/

• Audio:

  (file)

Noun

404 f (plural 404)

1. Peugeot 404