The Alternative English Dictionary: 404

Android app on Google Play

Entry definition

404 etymology From the HTTP error status code 404, meaning Not Found, returned by a web server responding to a request for a non-existent URL. pronunciation
  • (UK) /ˈfɔːɹəʊˌfɔː(ɹ)/
adjective: {{en-adj}}
  1. (computing, slang) Not found, especially of a web page on the internet. Bill was 404 all morning.

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