lieutenant /ˌlefˈtenənt/ n. ［c］（英）陆军（海军）中尉；（英；美）海军中尉：a flight lieutenant 空军中尉He was promoted to be a lieutenant in the army.他被提升为陆军中尉。The lieutenant stood ahead of the troops.上尉/中尉站在士兵的面前。