A chief executive officer (CEO) is the highest-ranking executive in a company or organization. The CEO is responsible for making major corporate decisions, managing the overall operations, and acting as the main point of communication between the board of directors and the company's operations. They often set the strategic direction and ensure that the organization meets its goals. CEOs typically have a wide range of responsibilities, including overseeing the company's resources, making financial decisions, and representing the company to stakeholders. They may also work closely with other executives, such as the chief financial officer (CFO) and chief operating officer (COO), to implement policies and strategies.