One who enforces civil law
One holding a responsible post in the armed forces
American officers include --- Army and Marine Corps commissioned officers, and Army special officers: Commander in Chief, General of the Army, Lieutenant General, Major General, Brigadier General, Colonel, Lieutenant Colonel, Major, Captain, First Lieutenant, Second Lieutenant, Adjutant General, Aide-de-Camp, Chief of Staff, Assistant Chief of Staff, Chaplain, Inspector General, Judge Advocate General, Provost Marshal General, Quartermaster General, Surgeon General; Navy commissioned officers: Admiral of the Fleet, Fleet Admiral, Admiral, Rear Admiral, Vice Admiral, Commodore, Captain, Commander, Lieutenant Commander, Lieutenant, Lieutenant, junior grade; Ensign, Army and Marine Corps noncommissioned officers: Sergeant Major, Command Sergeant Major, Master Sergeant, First Sergeant, Staff Sergeant, Sergeant, Mate, Corporal, Lance Corporal, Private First Class, PFC, Private, Navy noncommissioned officers: Master Chief Petty Officer, Senior Chief, Chief, Seaman; temporary officers: Officer Commanding, Commanding Officer or CO*, officer of the day.
See officer in Webster's New World Roget's A-Z Thesaurus II
A person having administrative or managerial authority in an organization:administrant, administrator, director, executive, manager, official. (Informal) exec. See over
A member of a law-enforcement agency:bluecoat, finest, patrolman, patrolwoman, peace officer, police, policeman, police officer, policewoman. (Informal) cop, law. (Slang) bull1, copper, flatfoot, fuzz, gendarme, heat, man (often uppercase). (Chiefly British) bobby, constable, peeler. See law
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