If you have your WordPress site setup to display posts as excerpts, chances are that a set amount of text will display followed by a link commonly known as the “Read More” link.
The purpose of this link is to offer the user a quick excerpt of the post so they can quickly navigate through all of your recent posts on your blog. Doing this offers more choices for your users thus providing a richer experience.
https://www.elegantthemes.com/blog/tips-tricks/how-to-customize-the-wordpress-read-more-link-text
Sent from my Samsung Galaxy smartphone.