A person in charge is someone who is responsible for the management and direction of a group or organization. The term can be used to describe a variety of roles, such as RULER (5 letters), MANAGER (7 letters), PILOT (5 letters), BOSS (4 letters), HEAD (4 letters), and bigkahuna (9 letters). A RULER is someone who has supreme authority over a country or state, while a MANAGER is someone who oversees the work of others and makes sure that tasks are completed. A PILOT is a person who operates an aircraft, and a BOSS is someone who has authority over employees. A HEAD is the leader of an organization, and a bigkahuna is a slang term for a powerful person in charge.