ALL meanings of first lieutenant
first lieu·ten·ant
F f - noun first lieutenant an officer ranking next above second lieutenant and next below a captain. 1
- noun first lieutenant the officer responsible for the upkeep and maintenance of a warship, esp the executive officer of a smaller ship in the Royal Navy 0
- noun first lieutenant an officer holding commissioned rank in the US Army, Air Force, Marine Corps, or in certain other forces, senior to a second lieutenant and junior to a captain 0
- noun first lieutenant an officer ranking above a second lieutenant and below a captain 0
- noun first lieutenant the officer in charge of maintenance of a ship or shore station 0