The phrase "pours oil troubled waters" is a commonly used idiom that means to calm a difficult or tense situation. Some synonyms for this phrase include easing tensions, soothing the situation, pacifying, mitigating conflict, harmonizing, calming the storm, settling disputes, and quelling disturbances. These words all convey the idea of bringing peace to a situation that may be tumultuous or chaotic. By using these synonyms instead of the phrase itself, one can add variety and depth to their writing while still conveying the same meaning. Whether in professional, personal, or social situations, these words can be useful in describing efforts to resolve conflicts and promote peace.