I am currently working on a page with a block of text. The length of this text block may vary, depending on the search term of the user. On mobile, I decided to truncate the text and include a "Learn More" link. This text is inside an extensible / reducible block. When the user clicks "Read More", the block expands to display the full text.
When the block is fully expanded, I want to include a link that will fold the block back to its original position. I've currently chosen "Close" as the link text, but I'm afraid it's a little ambiguous for users.
I've thought about using Show more / Show less, but as it's a block of text, I think that Read More is more suitable.