Second lieutenant (called under-lieutenant in some countries) is a junior commissioned officer military rank in many armed forces. ==Israel== Since 1951 in the Israel Defense Forces (סגן-משנה (סג`מ segen mishne (sagam) has been equivalent to a second lieutenant (NATO OF-1). From 1948 - 1951 the corresponding rank was that of a (סגן) ....
[n] - a commissioned officer in the army or air force or marine corps holding the lowest rank
noun a commissioned officer in the army or air force or marine corps holding the lowest rank