SEO stands for search engine optimization. SEO practitioners optimize websites, web pages and content for the purposes of ranking higher in search engines, like Google. SEO is a set of practices designed to improve the appearance, positioning, and usefulness of multiple types of content in the organic search results. This content can include web pages, video media, images, local business listings, and other assets. Because organic search is the top method via which people discover and access online content, utilizing SEO best practices is essential for ensuring that the digital content you publish can be found and chosen by the public, increasing your website鈥檚 organic traffic.
Source: https://support.google.com/assistant/thread/305613037?hl=en&sjid=11776002655225989974-AP