A Wiki is a type of website that allows users to collaboratively create, edit, and manage content. The most famous example is Wikipedia, which serves as a vast online encyclopedia, enabling people to contribute knowledge on a wide range of topics. Wikis are designed to be user-friendly, allowing individuals with little technical expertise to participate in content creation. This collaborative approach fosters a community-driven environment where information can be continuously updated and improved, making wikis valuable resources for learning and sharing knowledge.