ensign

Cờ hiệu, cờ cấp bậc

a small flag used as a symbol of rank or nationality, especially on ships and military vehicles

• the ensign of a country

Collocations naval ensign · national ensign

• The ship flew the national ensign.

  Con tàu đã treo cờ quốc kỳ.

Trung úy (quân đội)

a junior officer in the navy or army, often a second lieutenant or equivalent rank

• ensign of the navy/army

Collocations naval ensign · army ensign

• He was promoted to ensign.

  Anh ta đã được thăng cấp trung úy.