Navy Delayed Entry Program (DEP) Practice Test

The term "ensign" primarily refers to a national flag, especially when used in a naval context. In many navies, including the U.S. Navy, the ensign is the flag that represents the country and is flown on naval vessels to denote their nationality. This term can also apply to the specific flag flown by ships at sea, often indicating the ship's country of origin and ensuring identification among naval forces.

While the other choices mention various aspects of naval terminology—such as a type of ship, a low-ranking officer, or decorations—they do not capture the primary definition of "ensign" within a naval framework. Thus, the correct understanding of "ensign" as the flag emphasizes its significance in naval operations and customs.