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English definition of “wiki”

wiki

noun [C] uk   /ˈwɪ.ki/ us  
a website that allows users to add, delete (= get rid of), and edit (= change) the contents, or the program that makes this possible: Wikipedia is thought to be the world's largest wiki with more than 280,000 articles.
(Definition of wiki from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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