SEO is short for search engine optimization (or search engine optimizer).
Search engine optimization is a methodology of strategies, techniques and tactics used to increase the amount of visitors to a website by obtaining a high-ranking placement in the search results page of a search engine (SERP) -- including Google, Bing, Yahoo and other search engines.
What is Organic SEO?
Organic SEO (search engine optimization) is the phrase used to describe processes to obtain a natural placement on organic search engine results pages (SERPs).
Some examples of techniques used for organic SEO include using keywords and keyword analysis, backlinking, link building to improve link popularity, and writing content relevant for human readers.