second lieutenant
From Longman Dictionary of Contemporary EnglishRelated topics: Militarysecond lieutenantˌsecond lieuˈtenant noun [countable] PMPOSITION/RANKa middle rank in several of the US and British military forces, or someone who has this rankExamples from the Corpussecond lieutenant• M in the 1960s, Hargrove also earned a commission as a second lieutenant in the U. S. Army.• During the brief period I spoke of, we had a second lieutenant take over the platoon.• I opened the door as a young second lieutenant walked by.