A lieutenant[a][b] is a junior commissioned officer rank in the armed forces of many nations, as well as fire services, emergency medical services, security services and police forces. The …

In the army, a junior lieutenant is a second lieutenant, usually a newly commissioned young officer. A first lieutenant is the more senior rank in the army; it was formerly used in the navy to …

Lieutenant, company grade officer, the lowest rank of commissioned officer in most armies of the world. The lieutenant normally commands a small tactical unit such as a platoon. In the British …

LIEUTENANT definition: 1. (the title of) an officer of middle rank in the armed forces: 2. (the title of) an officer of…. Learn more.

4 meanings: 1. a military officer holding commissioned rank immediately junior to a captain 2. a naval officer holding.... Click for more definitions.

Definition of lieutenant noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Define lieutenant. lieutenant synonyms, lieutenant pronunciation, lieutenant translation, English dictionary definition of lieutenant. n. 1. a. A commissioned rank in the US Navy or Coast Guard …

Dec 22, 2025 · lieutenant (plural lieutenants) (military) The lowest junior commissioned officer rank (s) in many military forces, often Army and Marines. (military, US) In the US Army, Air …

Lieutenant The senior grade of lieutenant is known as first lieutenant in the United States, and as lieutenant in the United Kingdom and the rest of the English-speaking world. In countries that …

Military rank is more than just who salutes whom. Military rank is a badge of leadership. Responsibility for personnel, equipment, and mission grows with each increase in rank.