prisoner of war

Từ điển Oxford Advanced Learner 8th

ˌprisoner of ˈwar [prisoner of war prisoners of war] BrE NAmE noun (pl. prisoners of war)(abbr.POW)
a person, usually a member of the armed forces, who is captured by the enemy during a war and kept in a prison camp until the war has finished

Example Bank:
•After several more months as a prisoner of war, he escaped again.