Definition of lieutenant
1a : an official empowered to act for a higher official The king's lieutenant handled the problem.b : an aide or representative of another in the performance of duty : assistant Her best lieutenant was working on the proposal.
2a (1) : first lieutenant (2) : second lieutenantb : a commissioned officer in the navy or coast guard ranking above a lieutenant junior grade and below a lieutenant commanderc : a fire or police department officer ranking below a captain
Examples of lieutenant in a sentence
He was promoted to the rank of lieutenant.
She has her best lieutenants working on a proposal.
one of the mobster's most loyal lieutenants
Origin and Etymology of lieutenant
Middle English, from Anglo-French lieu tenant, from liu + tenant holding, from tenir to hold, from Latin tenēre — more at thin
First Known Use: 14th century
LIEUTENANT Defined for English Language Learners
Definition of lieutenant for English Language Learners
: an officer in the army, navy, or air force with a fairly low rank
: an officer in a fire or police department who has a rank below a captain
: an assistant to another, more powerful person : a person who represents and works for someone else
LIEUTENANT Defined for Kids
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