Hawaiian for "quick" which is extended to mean a web site that allows visitors to make changes, contributions, or corrections.

1. The world's largest encyclopedia available on the web at www.wikipedia.com presenting content about every conceivable subject, which has been written and edited by hundreds of thousands of contributors from all walks of life.
2. A blend of wiki and encyclopedia.

• Wiki: "Wiki wiki" means "quick" in Hawaiian.
• Encyclopedia: A reference work (often in several volumes) containing articles on various topics (often arranged in alphabetical order) dealing with the entire range of human knowledge or with some particular specialty.