Help:Create a new article

A new article (page) is easily added, either by searching for it (in the internal search), or adding a link to a page you want to create. If the page does not exist, it is opened in edit mode. You must save the page before it is actually created. To edit a page, you must be logged in.

Example: If you would like to create a new defintion, for example "Basal area", search for Definition:Basal area. "Definition" means here that the page should belong the namespace called "Definition". Note that a namespace can only be created by an adminstrator by editing the wikipedia settings.

More info: http://meta.wikimedia.org/wiki/Help:Starting_a_new_page