There are several synonyms for the expression "comes out in open." One could say, "reveals," "discloses," or "confesses." To reveal something means to make it known or visible, while disclosing is more specific towards revealing something that was previously unknown. Confessing, on the other hand, implies some sort of guilt or wrongdoing. Other synonyms could include "admitting," "acknowledging," or "declaring." Each of these synonyms has its own specific connotations and should be chosen based on the context in which they will be used. Regardless, they all convey the idea of something previously being hidden or unknown being brought to light.