Second lieutenancy is a term used in military jargon to describe the rank of a commissioned officer in the army. The position is normally granted to a person after completing necessary training courses and subsequent evaluations. Other synonyms that can be used to describe second lieutenancy include "subaltern", "junior officer" and "ensign". The rank is commonly described as the lowest commissioned officer rank in the army and is often used to begin an officer's career. The term has been used since early army days and it carries significant prestige and responsibility. It is important to know the various synonyms of second lieutenancy to have a diversified way of referring to the rank.