A Lieutenant is a military rank used in various armed forces around the world. It typically denotes a junior officer who is responsible for leading a small group of soldiers or sailors. In many countries, the rank of lieutenant is above that of a second lieutenant and below that of a captain. In addition to the military, the term "lieutenant" is also used in law enforcement and other organizations, such as fire departments. In these contexts, a lieutenant often supervises a team and assists in operational planning, ensuring that tasks are carried out effectively and efficiently.