The phrase "made public property" implies that something that was once private or exclusive has been shared with the general public for everyone to access. There are several synonyms for this phrase, including "released to the public," "disclosed to all," "openly accessible," "available to everyone," and "made widely available." These words all convey the same idea that something that was once kept under wraps or restricted has now been made public, whether by choice or not. It's important to consider the context in which this phrase is used, as the connotations can be positive or negative depending on the situation.