actually i am new around here. there are many things i am not able to understand many things please help me out. so,Anybody please tell me what is Wordpress?? and what is it used for? thank you.
http://wordpress.org/ WordPress is a state-of-the-art semantic personal publishing platform with a focus on aesthetics, web standards, and usability. What a mouthful. WordPress is both free and priceless at the same time. More simply, WordPress is what you use when you want to work with your blogging software, not fight it.
It's a content management system (CMS) - It lets you edit your blog and add content easily. You manage your whole blog right there in wordpress.
It is a blog content manager. It can be used for websites also. But sometimes in larger websites, it gives problems if improper HTML is entered into any of the content. So, it is safer to use Drupal (drupal.org) with TinyMCE for HTML validation.
addition to others, wordpress is one of several blogging tools (based on PHP and MySQL), allows you to make, custom and runs your blog in an easy way. for blog definition, i agree to refer it to wikipedia.