Glossary comments
From MoodleDocs
If you enabled comments on the glossary entries, users can annotate the definitions in the word list. When you look at a word in the glossary list, you'll see a little cartoon speech balloon icon in the lower right-hand corner of the definition block.
When you click on the balloon, you're taken to the comment entry page. Add your comment then click the "Save changes" button.
Once you've saved your comment, Moodle will display all of the comments for the entry. When you return to the main glossary page, you'll see a new message next to the speech balloon telling you how many comments there are for the entry.
