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  1. Wikipedia, the free encyclopedia

    Wikidata Free knowledge base Wikiversity Free learning resources Wikiquote Free quote compendium MediaWiki Free & open wiki software Wikisource Free content library Wikispecies Free species …

  2. Wikipedia | Definition, Encyclopedia, History, & Facts | Britannica

    Dec 7, 2025 · Wikipedia uses collaborative software known as a wiki that facilitates the creation and development of articles. Although some highly publicized problems have called attention to Wikipedia …

  3. English Wikipedia - Meta-Wiki

    Nov 6, 2025 · The English Wikipedia, also abbreviated as en-WP, or simply enwiki, is the English-language version of Wikipedia. It is the original Wikipedia, and although the project has since …

  4. WIKI | definition in the Cambridge English Dictionary

    WIKI meaning: 1. a website that allows users to add, delete (= get rid of), and edit (= change) the contents, or…. Learn more.

  5. WIKI Definition & Meaning - Merriam-Webster

    The software, whose name is based on a Hawaiian term for "quick," allows website visitors to contribute content to its pages and comment on and make changes to information posted by others. A site …

  6. Wikipedia, the free encyclopedia

    Commons Free media repository MediaWiki Wiki software development Meta-Wiki Wikimedia project coordination Wikibooks Free textbooks and manuals Wikidata Free knowledge base

  7. Home – Wikimedia Foundation

    We support protect fund openhuman knowledge We are the nonprofit that hosts Wikipedia. We support the people, technology, and policies that enable reliable information to be shared with the world. Help …

  8. Wiki | Definition & Facts | Britannica

    Nov 17, 2025 · wiki, website that can be modified or contributed to by users. Wikis can be dated to 1995, when American computer programmer Ward Cunningham created a new collaborative technology for …

  9. Wikipedia - Wikipedia

    In 2003, economics PhD student Andrea Ciffolilli argued that the low transaction costs of participating in a wiki created a catalyst for collaborative development, and that features such as allowing easy …

  10. English Wikipedia - Wikipedia

    The English Wikipedia is the primary [a] English-language edition of Wikipedia, an online encyclopedia. It was created by Jimmy Wales and Larry Sanger on January 15, 2001, as Wikipedia's first edition. …