Wikipedia[c] is a free online encyclopedia written and maintained by a community of volunteers, known as Wikipedians, through open collaboration and the wiki software MediaWiki.

Feb 13, 2026 · Wikipedia, free Internet-based encyclopedia, started in 2001, that operates under an open-source management style. It is overseen by the nonprofit Wikimedia Foundation. Wikipedia …

Wikipedia definition: the name of a large website that provides free information in many languages on many subjects, and…. Learn more.

Sep 7, 2025 · The comprehensive definition of Wikipedia, free online encyclopedia anyone can edit, including its history, creators, and significance in the digital age.

Wikipedia is a free online encyclopedia, created and edited by volunteers around the world and hosted by the Wikimedia Foundation.

6 days ago · Proper noun Wikipedia (plural Wikipedias) A free - content, multilingual, online encyclopedia and wiki run by the Wikimedia Foundation. Synonyms: see Thesaurus: Wikipedia He …

Jul 8, 2025 · What is Wikipedia? Wikipedia is a multilingual, web-based, free-content encyclopedia project based on an openly editable model. The name "Wikipedia" is a portmanteau of the words wiki …

an encyclopedia that is available free on the internet as a wiki (= a website where it is possible for users to add to or change the information it contains). It was started in the US in 2001 and is now published …

The world's largest encyclopedia on the Web. Wikipedia is user generated, and anyone can create or edit an article (see wiki).

Feb 10, 2025 · At its core, Wikipedia is a free, web-based, collaborative encyclopedia that is written and maintained by volunteers worldwide. It is a non-profit project hosted by the Wikimedia Foundation …