SEO stands for Search Engine Optimization.
SEO is the disciplined practice of increasing the quantity and quality of the traffic that comes through your website as a result of organic, or unpaid, search engine results.
That’s a mouthful.
This might be easier: SEO is basically everything that goes on behind the scenes when you search for something on Google.
Google has an infinite number of sites to choose from when providing you a result, but what Google chooses to display is driven by its own formulaic algorithm. SEO is like a game that marketers play to become Google’s top choice.