Pronunciation enPR: (wĭʹkē), IPA (key): /ˈwɪ.ki/ Audio (US)(file) Noun Singular wiki Plural wikis (countable) A wiki is a type of website where anyone can change the contents of pages. Simple English Wiktionary is a type of wiki. The Simple English Wikipedia has an article on: Wiki Wikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads