| admiral |
an officer in the United States Navy of the highest rank; the commander of a fleet of ships or military unit. |
| cadet |
a student in a military school; person training to be a military officer. |
| captain |
the chief officer of a merchant ship or an airplane. [4/7 definitions] |
| colonel |
an officer in the U.S. Army, Air Force, and Marines who ranks above lieutenant colonel and below general. |
| commander |
an officer who is the leader of a military unit. [1/3 definitions] |
| commission |
the order that gives a rank to an officer in the military. [1/7 definitions] |
| constable |
a police officer in a small town or village. |
| cop2 |
(informal) a police officer. |
| corporal2 |
an officer in the U.S. Army, Air Force, or Marine Corps who is ranked below sergeant and above private first class. |
| detective |
a person, often a police officer, whose job is to find information that will solve crimes. |
| ensign |
the lowest rank of an officer in the U.S. Coast Guard or Navy. [1/2 definitions] |
| general |
an officer of high military rank in the U.S. and other armed forces. [1/4 definitions] |
| inspector |
an officer in a police or fire department. [1/2 definitions] |
| lieutenant |
a military officer of a rank just below captain. [2/3 definitions] |
| marshal |
in the United States, an officer of a federal court whose duties are like those of a sheriff. [1/3 definitions] |
| mate1 |
an officer on a ship who ranks directly below the captain; first mate. [1/6 definitions] |
| president |
an officer elected to lead a group or organization. [1/2 definitions] |
| sergeant |
a police officer whose position is below a captain, lieutenant, or inspector. [1/3 definitions] |
| sheriff |
the main law officer of a county. |
| soldier |
a person who serves in the army and who is not an officer. |
| treasurer |
the officer of a club, business, or other organization who is responsible for taking care of the group's money. |