first lieutenant

noun Military.

an officer ranking next above second lieutenant and next below a captain.

Origin of first lieutenant

First recorded in 1775–85

Words nearby first lieutenant

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Example sentences from the Web for first lieutenant

British Dictionary definitions for first lieutenant

first lieutenant

noun

the officer responsible for the upkeep and maintenance of a warship, esp the executive officer of a smaller ship in the Royal Navy
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