A flag or banner, often used in military contexts.

A commissioned officer in the military, particularly in the Navy.

उप-उपकरण

English Usage: He was promoted to ensign after completing his training.

Hindi Usage: प्रशिक्षण पूरा करने के बाद उसे उप-उपकरण के पद पर पदोन्नत किया गया।