Hey all,
As mentioned before: Dreamweaver is an editor. It allows someone to edit PHP, HTML, CSS, Javascript files and so much more.
WordPress is officially called a CMS: Content Management System.
WordPress can even be combined with Dreamweaver as it allows WordPress theme files to be edited.
Let me know if you guys need any help, i'd be more then happy to help you directly.
Hope this helps!
Cheers,
Aron