A WikiWord is a word that puts two or more words together and capitalizes the first letter of each word (like WikiWord or AdamShand). WikiSoftware uses a WikiWord as a syntactic way of defining a hyperlink. Any word which matches the WikiWord patern, NoMatterHowSilly creates a link. If the page with that name already exists it's just a simple link, if the page doesn't exist then clicking on the WikiWord takes you to page which asks if you want to create the page.
See also: WhyWikiWorks, HelpForBeginners