"Gray eminence" is a term used to describe someone who operates in the background and holds great power and influence. Synonyms for this term include "power behind the throne," "puppet master," and "silent partner." Other similar terms include "kingmaker," "manipulator," and "hidden hand." These people often use their influence to shape decisions and steer outcomes without being directly involved in the spotlight. They may operate behind the scenes, using their knowledge, connections, and resources to exert their influence. Whether seen as positive or negative, the gray eminence plays a crucial role in many aspects of leadership and decision-making.