- The definition of a lieutenant is a deputy, aide or official ranking under a captain.
An example of a lieutenant is a deputy sheriff.
The badge of a lieutenant deputy sheriff.
lieutenant definition by Webster's New World
- a person who acts for a superior, as during the latter's absence; aide; deputy
- an officer ranking below a captain as in a police or fire department
- U.S. Mil. a title used in addressing a first lieutenant or second lieutenant
- U.S. Navy an officer ranking above a lieutenant junior grade and below a lieutenant commander
Origin: Middle English lutenand, luftenand ; from Middle French ; from lieu (see lieu) plush tenant, holding, present participle of tenir, to hold ; from Classical Latin tenere, to hold: see thin
lieutenant definition by American Heritage Dictionary
- a. Abbr. LT or Lt. A commissioned rank in the U.S. Navy or Coast Guard that is above lieutenant junior grade and below lieutenant commander.b. A first lieutenant.c. A second lieutenant.d. One who holds the rank of lieutenant, first lieutenant, or second lieutenant.
- A commissioned officer in the British and Canadian navies ranking just below a lieutenant commander.
- An officer in a police or fire department ranking below a captain.
- One who acts in place of or represents a superior; an assistant or deputy: the organized crime figure and his lieutenants. See Synonyms at assistant.
Origin: Middle English, deputy, from Old French : lieu, lieu; see lieu + tenant, present participle of tenir, to hold (from Latin tenēre; see ten- in Indo-European roots).
- lieu·tenˈan·cy noun