Make sure though, that your use of the words makes sense within the content
realm of your site.
You wouldn't for example, want to load your Hotel page with keywords for the
search term Dog House.
The reason of course, is because some search engine such as Google, now rank your site not only on your terms,
but "interest rank". If a user performs a search and clicks on a link to
your site, and the hits the back button because your site was not relavent,
you loose "interest rank" which will in turn lower you web site ranking.