Submission
In the SEO context, submission refers to the process of submitting a Web site or specific Web pages to search engines for indexing.
This can include registering a new website with the search engines or submitting new pages or updates to existing pages.
Typically, search engine crawlers automatically discover and index most websites, but tools such as Google Search Console can be used to manually submit pages or sitemaps to speed up indexing, especially for new websites.
Submission can then be an important step in making sure that search engines are aware of your site’s content and can include it in their indexes, thus improving the likelihood that your pages will show up in search results.