I am not really sure how this is working. I where just creating an list with most frequently used chengy in Chinese newspapers. There are a few Chengyu that are in Skritters database but without definition. If I then add (have done that already) definitions, will those be public or just my own definition? If I add the whole word I can see that i get this with style guide etc but if it is just the definition I do not get it.

If they're in Skritter's database, but without a definition, if you add the definition, then everyone sees it.