lieutenant
n. countablen. a middle-level officer in the army, navy, or police. This person is usually the main assistant to a higher leader.
n. a commissioned officer rank in the armed forces or police, typically positioned below a captain or commander. Often functions as a deputy or assistant to a superior officer.
The lieutenant gave the soldiers their orders for the morning.
After the captain was injured, the lieutenant took command of the company to finish the mission.
Promotion to lieutenant marks a significant transition in a soldier's career, moving from direct tactical execution to the broader responsibilities of personnel management and strategic coordination.
From Middle English lieutenant, lieftenaunt, from Anglo-Norman lieutenant, lyutenaunt, leu tenant, leu tenaunt (“deputy, lieutenant”), from Old French lieu (“place”) + tenant (“holder”). Doublet of locum tenens.
Often used as a title before a surname; in many military contexts, it is the lowest rank of commissioned officer.
He is a lieutenant of the policeHe is a police lieutenantIn English, military and police ranks are typically used as attributive nouns before the person's name or as a compound noun, rather than using 'of'.