There are several synonyms for the phrase "accepting responsibility for" including taking ownership of, holding oneself accountable for, stepping up to the plate, acknowledging one's role in, admitting fault, assuming liability for, and embracing accountability. These phrases all convey the same idea of taking responsibility for one's actions and being willing to face the consequences of those actions. It takes a strong and mature individual to accept responsibility and take ownership of their mistakes or shortcomings. By doing so, they demonstrate their integrity and commitment to honesty and transparency in their personal and professional relationships.