If you refer to someone as a person's lieutenant, you mean they are that person's assistant, especially their main assistant, in an organization or activity. He was my right-hand man, my. Lieutenant, company grade officer, the lowest rank of commissioned officer in most armies of the world.

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. Definition of lieutenant noun in oxford advanced learner's dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. Lieutenant[nb 1] (abbreviated lt, lt (u. s. ), lt (usn), lieut and leut, depending on nation) is a commissioned officer rank in many english-speaking nations' navies and coast guards. In english, lieutenant is best known as a military title, but the word is still sometimes used in its original meaning to refer to a person who acts in lieu of someone else. So a lieutenant is a placeholder, one who takes the place or of or is deputy to a superior officer. In non-military contexts, lieutenant is a synonym of assistant or deputy.

In english, lieutenant is best known as a military title, but the word is still sometimes used in its original meaning to refer to a person who acts in lieu of someone else. So a lieutenant is a placeholder, one who takes the place or of or is deputy to a superior officer. In non-military contexts, lieutenant is a synonym of assistant or deputy. In the u. s. Military, a.