an alphabetical list of words relating to a specific subject, text, or dialect.
The No follow attribute tag is a way to tell search engines not to follow the link to other pages. In terms of link juice, with a no-follow tag, the link juice gained by the URL mentioned in the link is zero. The no-follow attribute can appear as a meta tag (making all links on that page as no-follow) or within a link.
As a meta tag: content="nofollow" />
Inside a link: rel="nofollow">Login
Find more here: https://support.google.com/webmasters/answer/96569?hl=en