SEO or search engine optimization is a set of best practices that allow you to get more traffic to your website from search engines.

WordPress is quite SEO friendly out of the box, but there is so much more that you can do to make your website even more search engine friendly. Specifically, take a look at the Yoast SEO plugin. Use a tool like KW Finder to help find keywords that you can use on your site and enter into the fields suggested by Yoast.