Definition of lieutenant noun from the Oxford Advanced Learner's Dictionary



    BrE BrE//lefˈtenənt//
    ; NAmE NAmE//luːˈtenənt//
    (abbreviation Lieut., Lt) The army, The police, The navy
    jump to other results
  1. 1 an officer of middle rank in the army, navy, or air force Lieutenant Paul Fisher see also flight lieutenant, second lieutenant, sub lieutenant See related entries: The army, The navy
  2. 2 (in compounds) an officer just below the rank mentioned a lieutenant colonel See related entries: The army, The navy
  3. 3 (in the US) a police officer of fairly high rank See related entries: The police
  4. 4a person who helps somebody who is above them in rank or who performs their duties when that person is unable to
  5. Word Originlate Middle English: from Old French (see lieu, tenant).
See the Oxford Advanced American Dictionary entry: lieutenant