The word "bossey" is an informal term that means a person who controls or has power over others. There are several synonyms that can be used to convey the same meaning, including boss, leader, manager, supervisor, director, head, chief, controller, and overseer. Each of these words carries a slightly different connotation, but they all refer to someone who is in charge and has authority over others. It's important to choose the right word depending on the context in which it is being used, but any of these synonyms would work well as a substitute for "bossey" in most situations.