From Longman Dictionary of Contemporary Englishsecond lieutenantˌsecond lieuˈtenant noun [countable] PMPOSITION/RANKa middle rank in several of the US and British military forces, or someone who has this rank
Examples from the Corpus
second 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. 