Synonyms for the phrase "pressing charges" include initiating legal proceedings, bringing a lawsuit, filing a complaint, lodging a formal accusation, and making a formal charge. All of these phrases imply that someone is taking legal action against another person for an alleged wrongdoing. It's important to remember that pressing charges should only be done when there is evidence to support the accusation. In many cases, it may be more appropriate to try to resolve the matter outside of court through mediation or negotiation. Ultimately, the decision to press charges should be made carefully, with the guidance of legal counsel if necessary.