SEO (Search Engine Optimization) is the process of improving a website so it appears higher in search engine results, like on Google, when people search for things related to your site. The higher your website ranks, the more people are likely to visit it.
Think of it like a store: if your store is on the main street (the first page of Google), more people will see it and come in. If it’s in a back alley (on the second or third page), fewer people will find it. SEO helps your website get to the “main street” of search results by making it more visible and easier for search engines to understand.