an alphabetical list of words relating to a specific subject, text, or dialect.
Anchor text refers to the visible and clickable words and characters in a hyperlink. Anchor text is often displayed on web pages by the browser in a separate colour and is underlined to make it stand out from the rest of the text.
Search engines use anchor text to determine what the hyperlinked page is about. Anchor text should reflect the content of the page that the hyperlink is pointing to. When optimizing a page for search engines, including important keywords in the anchor text can make a difference in the ranking of your page. The source page's content and the content of the anchor text helps determine link relevancy which in turn helps determine the page's search engine rankings.