Hi, first, I want say sorry if my post is not "English" readable, but i'm not English.
Ok so, I'm looking for a plugin that allow me to create something like a glossary which I can add "manually" some content entry per entry. For example, if anyone of You are familiar with this site, probably work with the Valve Source Engine. However there are a lot of special entities and i want to reproduce it ordered to my site. Is possible to do? Thanks
you might be looking for something like this - http://wordpress.org/extend/plugins/automatic-glossary/
but in terms of a Wiki, you'd be better off just installing something like Mediawiki instead of WordPress, if that's the primary purpose of the site.
WordPress isn't designed to be a wiki, because there are other apps out there that focus on being a wiki.
that said, there are still quite a few wiki plugins available to try: http://wordpress.org/extend/plugins/tags/wiki