SEO stands for Search Engine Optimization. It is the process of improving a website to increase its visibility on search engines like Google, Bing, and Yahoo. When people search for something online, it helps a website appear higher in the search results. This is important because the higher a website ranks, the more visitors it gets. Simply put, SEO is about making sure your website can be easily found by people who are searching for information, products, or services related to your business.