Organic search results are the unpaid results that appear on a search engine's results page after a query. In the following example, when I typed sportswear into Google, all of the unpaid results are part of that organic search. Organic search refers to search results from a search engine that cannot be influenced by paid advertising. Organic search results are ranked according to their relevance to the search term.
Therefore, organic search results don't include ads, but they can include search snippets, such as maps, images, articles, or the knowledge graph.