Meta tags are snippets of text that describe a page's content; the meta tags don't appear on the page itself, but only in the page's source code. Meta tags are essentially little content descriptors that help tell search engines what a web page is about.

<title>Freelancer Web Developer Tuğrul Yıldırım</title> 
<meta name="description" content="Tuğrul Yıldırım is a freelance web developer who has been developing websites for over 10 years. He has developed many websites for many companies etc"/>