[From the Anglo-Saxon segn.]
A large flag or banner, hoisted on a long pole erected over the stern, and called the ensign-staff. It is used to distinguish the ships of different nations from each other, as also to characterize the different squadrons of the navy; it was formerly written ancient. Ensign is in the army the title of the junior rank of subaltern officers of infantry; from amongst them are detailed the officers who carry the colours.