Yes, let's consult Wikipedia to see what those 4 letters mean:

A wiki (/ˈwɪki/ i WIK-ee) is an online hypertext publication collaboratively edited and managed by its own audience, using a web browser. A typical wiki contains multiple pages for the subjects or scope of the project, and could be either open to the public or limited to use within an organization for maintaining its internal knowledge base.

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There are hundreds of thousands of wikis in use, both public and private, including wikis functioning as knowledge management resources, note-taking tools, community websites, and intranets. Ward Cunningham, the developer of the first wiki software, WikiWikiWeb, originally described wiki as "the simplest online database that could possibly work".[3] "Wiki" (pronounced [wiki][note 1]) is a Hawaiian word meaning "quick".[4][5][6]