POW camp vs prisoner of war camp

POW camp and prisoner of war camp both are nouns.

Word	Noun	Adjective	Verb	Adverb
POW camp	Yes	No	No	No
prisoner of war camp	Yes	No	No	No

As nouns, POW camp and prisoner of war camp are synonyms defined as:

Other synonyms of POW camp include internment camp, prison camp.

POW camp (noun)	prisoner of war camp (noun)
a camp for prisoners of war	a camp for prisoners of war