The phrase "pours oil on troubled waters" is commonly used to refer to someone who seeks to calm down a difficult situation. There are several synonyms for this phrase, including "pacify," "soothe," "ease tensions," "calm down," and "smooth over." These phrases all convey the idea of using words or actions to make a situation less volatile and restore a sense of peace. Whether it's in the workplace, in personal relationships, or within a community, the ability to pour oil on troubled waters is an important skill that can help to diffuse conflicts and promote harmony.