WordPress is an open source software used to create blogs and websites. This means it is freely available for you to use in whatever manner you want. By being freely available and its code being accessible it means that it can be modified and improved by hundreds of WordPress developers and users, who form the WordPress Community, to suit as many needs as possible. This means that no matter what your business does, and whatever functionality you may need, you will most likely find the functionality available in WordPress to be added as a plugin or addon.
WordPress is also Search Engine Friendly (SEO) which means that search engines such as Google, Yahoo and others prefer it. Which means they will most likely find your content and rank it favorably. Apparently the way WordPress is constructed allows crawlers to find most of its posts and pages. The blog style that it is based on implies a site that may be content rich and changing, something that does help with rankings on search engines.
WordPress is also as easy to use as most word processors that most of us are used to using. So as you can imagine, WordPress is easy to use and learn. Many developers provide many ways to extend WordPress' functions. So WordPress can easily be expanded to meet your functionality needs.
I mentioned earlier that WordPress was a Content Management System " is a software that facilitates creating, editing, organizing, and publishing content. WordPress is a Content Management System, that allows you to create and publish your content on the web. Although it is mostly used for web publishing, it can be used to manage content on an intranet, or in a single computer.
WordPress allows users to have full control over the files, documents, as well as the design and display of the content. You don’t have to know a single line of code to publish content using WordPress. The beauty of a good content management system is to allow any user to create and manage their content without any technical know-how." (wpbeginner)