SEO stands for Search Engine Optimization. Which is the art of ranking high on a search engine in the unpaid section, also known as the organic listings. Search engine optimization (SEO) is the process of optimizing your online content so that a search engine likes to show it as a top result for searches of a certain keyword.
When it comes to SEO, there’s you, the search engine, and the searcher. If you have an article about farming, you want the search engine (which, in 90% of all cases, is Google) to show it as a top result to anyone who searches for the phrase “farming.”