an alphabetical list of words relating to a specific subject, text, or dialect.
Indexed pages are pages that have been visited by search engine bots and have been stored in their index. Indexed pages will show in search results and can drive organic traffic to your site. You can type ‘site: www.envigo.co.uk’ into Google to see a list of pages of www.envigo.co.uk which are in Google’s index.
A search engines selects search results from indexed pages only. Google can be asked to exclude a page from its index through robots.txt or through the INDEX meta tag.