TITLE WORDS

It’s been my experience that search engines treat a page’s “Title” words almost more importantly than anything else. I’ve had single page, All-Flash websites come up #1 in search results based entirely on the Title words embedded/hidden in the HTML source code. I’m new to WordPress, but I see that WP employs the actual page “Title” created in the admin as the “Title Words” in the HTML code, i.e. <title>Whatever Words Go Here</title>

I would really like to add more Title words to each page of my WordPress site, but, of course, I don’t want them all visible to the viewer as the main Title of the page. Is there a way, using CSS maybe, to add the same string of Title words to every page of my WP site? Thanks very much